Been over a year and car already been in garage 5 times. Beware of buying from this company

I put a DEPOSIT of £495 on a car but called within a couple of days to cancel and was told I couldn't get my deposit back! As "it wasn't a deposit it was a document fee" At NO point in the sales conversation was a DOCUMENT FEE mentioned but the word DEPOSIT was what i was told i was paying!! It seems by saying the deposit was a document fee or Admin fee they have a loop hole to keep your deposit money!! Please report to autotrader if this happens to you. If you have similar problem please contact AUTOTRADER directly on Tel - 0345 111 0002 They are taking all complaints seriously and will help with advice. • When buying a car online or over the phone, what are my rights if I change my mind and no longer want to buy the car? • If you’ve placed a deposit on a vehicle at a distance, either online or over the phone, you are entitled to cancel your order within 14 days and receive a full refund of your deposit, regardless of your reasons or any money the retailer has spent.