Patience paid off
My final review of Tolltickets as promised. They have acted positively upon the information provided (see my previous reviews) and eventually agreed to cancel the toll devices at no further cost to myself. They have also refunded the advance rental charge which was incurred due the length of time for this to be resolved. Everything worked out OK in the end, but feel they need to speed up their customer service process, as it gets very frustrating. Thanks for doing the right thing!
Reply from tolltickets GmbH