I must admit we are really surprised at any 5 star reviews based on our experience with Sterling Car Insurance. This is our daughters first car and we went with Sterling as they appeared to be the cheapest. Our daughter has been driving with extreme caution as she has a black box fitted from Sterling. A Flux Box. She had 1 caution that was wrong, luckily she checked and called to advise them it was wrong as the speed limit was 40 not 30. They apologised said database was wrong and changed it. I don't think as many young people may check as often as our daughter does and this can directly result in an already high premium going even higher.. Bad form on Sterlings behalf and leaves you quite wary of trusting their product. The car was then in for work in a garage and had tyres changed. The garage was aware she had a black box, we told them when the car was taken in, They had to test drove the car as needed, and we received 2 cautions for driving and an increase in her insurance policy for next year while they had it and were testing it. I though t this would be simple once we explained to them the situation, as the garage said it can happen as they need to check the tyres, I called Sterling advised the situation, told them the car was in the garage she was not driving it, the garage drove it to test drive it (under their own insurance) we have proof the car was in the garage, we have a receipt from that day to show a new tyre was fitted, the garage are also willing to provide written and/or verbal communication, the app clearly shows the car leaving the garage doing a lap back to the garage but Sterling are refusing to take the cautions off. I advised them it was not being driven at this time under their insurance policy, and we have proof, they were extremely unhelpful and told me the cautions would remain I need to take it up with the garage, the garage are also appalled as they drove the car under their own insurance not Sterling and had to test drive it due to the issue it had. They and us are appalled that once an insurance company hear the situation understand the car needs to be test driven, would refuse to remove any cautions from a driver that was not driving the car nor was it being driven under their insurance, I am now in the process of following complaints procedure and will sadly have to take this to the ombudsman. You constantly get text messages saying the black box battery is low even when it has days left before it runs out. The box is rather large, much larger than many of her friends so due to the positioning of the box the wire to charge it has to go right across the wheel so not safe so we charge when the car is parked, again not ideal. I called today to speak to someone was told they are experiencing high volumes of calls i can request a call back but it would be at the end of the week, today is Monday, Sterling really does need to do better. It is so difficult to chose an insurance company for young drivers due to huge costs, but i wish we had gone elsewhere and i hope this review helps someone else not make the same mistake we did by using Sterling Car insurance.