I tried to source some pairs of filters for my new DeLonghi dehumidifier and none were shown on your website, (The dehumidifier was out of stock) So I tried the Delonghi website and the model I have (DEX216RF) was not even listed, it only shows a model with 'F' and not 'RF' .The 'F' model only has one filter, so no use to me. So I called Delonghi and they did not know what I was talking about and sent me two pictures of filters that were not for my model. So I called your technical support who also had no clue and tried to refer me (twice) to DeLonghi.The technical support is based in the Philippines going by those that I spoke to as there was yelling in the background in one of their languages and it took some twenty minutes to get through. As an after thought a day later I checked your website and you do stock the filters,so I purchased three sets. However .£6.95 for 'carriage' is a bit steep for something that could have been posted for half that amount.I am a repeat customer and will come back again, but on this occasion I was very disappointed. Also I am being bombarded with emails if I even look at something on your website and it is annoying to say the least.