congstar Reviews 

Update:

Despite the fact that it took more than a month to have internet at home after signing the contract (this is mostly due to Telekom's inefficiency, but Congstar could not help much either) I am very happy about this internet provider: the speed is exactly what was promised, and I never experienced a disconnection in two months that I am using it.

So, I ordered a DSL100 connection via Telephone and one of the employee made a mistake with my name. So, I had to spend an hour correcting their own mistakes and they eventually cancelled and asked me to make a new request online. After ordering a new connection, within 1 day they sent me an e-mail saying

"" Dein Auftrag kann nicht ausgeführt werden
Hallo ,
vielen Dank für dein Interesse an unserem congstar Produkt und das entgegengebrachte Vertrauen! ""
So, they just wasted my hours of time just to reject it without any reason provided.
Just an Awful service and awful provider!!

4 yeas with Congstar, so far so great! And just got extra 16gb data for free, wow

Fast, friendly, transparent. Best service I've ever experienced in Germany.

I was rejected by the company for ordering Iphone 16 pro and no reason was given

I am quite angry because I wasted a lot of time because Congstar supplied with a SIM that they knew was faulty.
I put the SIM in my router and all the correct lights came on but I got a "no Internet" message when I tried to connect.
So I put my SIM in my mobile phone and it worked !
I initially thought that my router was incompatible with Congstar (it worked with other SIM cards).
But the explanation was actually very simple: the APN and password stored on the Congstar SIM card were incorrect!
After quite a bit of searching I found the correct APN on the Congstar Website and once I set up a new profile, everything works !
But why should I waste hours of research because Congstar supplied SIM which the must know won't initially work ?
Update:
I have searched the internet and have been unable to find a definitive answer about where the APN comes from. I think it's unlikely that it is stored on my router and much more likely that the faulty APN comes from the Telekom network. All I can say is that SIMs from AldiTalk and EndekeSmart both worked immediately and the Congstar SIM worked in my mobile phone.
I find it inconceivable that I am the first customer to experience this problem. The is no information on the Congstar Website about what to do if you router reports "no internet" and Congstar seem completely uninterested in fixing the problem. The consequence is that I wasted hours trying to fix the problem whereas I could have fixed it in less than five minutes.
I am a retired software engineer so I am not at all ignorant.
I just object to wasting a lot of time because Congstar/Telekom refuse to provide proper customer support.

Activation was seamless and network coverage is better than any alternative. I ordered "Prepaid Allnet L" and I'm now paying just 12eur a month for 15 GB.

Really happy with the service and the company!

The only thing I'm missing is English translation of their website or app, they really should add that.

I applied for a dsl internet contract and they rejected my request without even telling me the reason.
Just a NO.
Awful experience.
Very unprofessional, I would not recommend.

I bought a new SIM card in the supermarket, activation didn't work.
Called support, sent an email, support unresponsive, only BS answers: "is in progress...".

Can't get a refund either.

Should have known better, as it is a Telekom company. Red flag.

Update 4 days later: support tells me they are still working on it. Allegedly they have a lot support cases at the moment. And I think I know why.

For the first day I signed contract with congstar, everything has been smooth, customer care service is on top! I am highly satisfied

It's a very reliable company

I signed the contract for Homespot 30 Flex (50 GB) and bought a router with 89.99 Euro. But the router does not function well starting from the second month. It takes over 20mins to connect and finally it never connects to network. Congstar asks me to send router back for check and repair. It will take 7-14 days and they cannot provide any replacement during this period. In this case, my rights and interests were harmed. I paid for the router but I cannot use it.

You now have to install the congstar app to check your data volume for LTE homespot. Makes sense? Apart from that download\upload is mediocre. Using the service in Germany. So could be the German infrastructure that's pretty much behind every other European country (at least Western Europe)

On the comment: you would like to direct the customers to the app equals you are forcing the customer.
After cancelling the contract connection speeds are even worse.

Bad communication in the app. Legally questionable processes. Reporting this case to the Verbraucherschutz.

If you have a running contract with rest volume of like 140gb and want to stop the contract for one month for a stay abroad they stop the contract in 24 hours. You get the info after you changed the tarif. 140gb wasted and moneys wasted and two days of inconvenience closing the gap.

Got stuck in the service hotline 3 times. AI didn't reply two times and on the third time the call was cancelled right after the greeting of the service agent.

Updated rating: Considering data transmission rates and pricing for LTE in Germany rather good service.
In app unclear communication considering pausing and cancelling existing contracts. In particular the missing information that when pausing the contract even if you are in still the middle of your already paid period, the contract is paused immediately and you loose your already paid data volume. the customer support though is forthcoming to some extend.

I was in contact with customer service to change the name of the contract, keeping the same number, same contract. After so many attempts by email and chat a really friendly lady helped me on the phone. But it didn't work, the app was asking me for a new sim card numbers and of course the money we had as a credit in the app suddenly disappeared. I wrote them again by chat and email and they reply saying they are canceling everything and that is final, no more explanation or apologies or solution. Super unprofessional, massive Incompetents.

The wait to get through their Chat Customer Support is horrible, and I had to use that several times because they somehow manage to try and book money from my old bank account that doesn’t exist even though I tried to change the bank account on their data twice. So I had to pay extra fees for a simple technical incompetence twice. The reason I couldn’t even call to talk to customer support is because they blocked the use of my SIM instantly, instead of emailing me beforehand and wait for me to react to it. It’s ironic, isn’t it.

Congsta just charged us 100€ today
Congsta just charged us 100€ today! even though they cancelled the package we bought few months ago when I was in germany for visiting my fiance for 3 months! They called us and send email that my sim card and the package we bought are cancelled and the guy working in congsta called and offering us new package so when I will be back in germany I can still use the number I have, But I said no because I’m not in germany anymore, I said politely and say thank you. But today congsta deducted 100€ from us after 1month I’m not in germany anymore and not using the number and sim card!! It doesn’t make any sense can someone explain this? We bought this package half of the may I stayed in germany 3 months and left August 10 after that day. I didn’t use that number because I have the different number from the country I am now and the guy working in congsta called my number and send email to my fiance saying the number and the package we bought are cancelled. But today why they charge us 100€? We didn’t expect this since they’re the one who canceled the number I am using and the package we bought. 🤦‍♀️

Some years ago, I asked Congstar help service to set up a payment method for me. They did. Recently Congstar notified me that none of my payments during this period work out and now they ask me to pay everything at once. I am asking Congstar to send me the record of my communication with their help service to show that my payment method was set by Congstar and if it did not work it is not my fault but Congstar does not do that.

I ask for help to find the right router deal for me. I get an offer for in total 50 euro but when I accept to another employee I have to pay nearly 100 euro for the same deal. I show him proof of my first deal, but instead he gets hostile and rude in his responses.

I have been a customer since 2021, however I did not receive half of the tarif that I have paid for before 2023. I paid for two sim-cards but only got one up until now.

Congstar can not be recommended.

The time period is between March 28, 2023 and May 17 or possibly later. The primary issue is being charged for services that were canceled or not interested, not having any cell phone, and sending SIM cards back to Congstar. The representative claimed that credit was issued but this is a lie. The issue is not the amount but being charged for unwanted and canceled service. It certainly seems as if Congstar does not understand NEIN. Hopefully, they will get the message as I look towards the government reporting agency. Sometimes, the representative will even hang up on the customer. I received notice that I have a credit but this remains to be seen.

I just checked my future deduction and Constar decided to charge my account regardless of prior cancel notice. Looks like reporting time to the special government agency. Not trustworthy is definitely the right title.