When did you ask for a refund?
How much did you pay and how old is it?
Sorry for the delay. I lost my connection.
Under the Consumer Rights Act you do have the right to reject the vehicle for the first thirty days. I don't know whether that was what you said. That is the problem with phone calls rather than letters. I suppose he will deny that you said that and proving it is hard.
However, it is a fairly low sum of money that is within the small claims court arena so it would be cheap and quick to issue.
They may well just settle to avoid action.
That said, I would write to them threatening to sue before you do.
That will protect you from costs.
Can I clarify anything for you?