I'm so annoyed I've had a good score for months and am of a sudden my acceleration score is really low. I know I've been scammed as everyone else is saying the same thing. They charged me for acceleration for joining a motorway. This month I didn't go on a motorway at all and drove extra careful and I still got a lower score for acceleration. It is making me anxious. The rest of my scores are prefect so how is this possible that I'm accelerating too much? There is a fault with the black box. But after seeing the reviews, we all have the same problem. How are we all good drivers by bad at acceleration??? And they do not answer the phone. I want to sue this company for theft.