Do not use them as they cannot deliver the service they promise.
I booked my car for an MOT and a full service, they confirmed they were collecting and delivering the same day unless extra works were required.
I asked for some time off at work to be at the collection point the time agreed.
They contacted me only a day before the collection date to postpone the service for the following day, same time of collection.
The night before the collection they changed the time from 8.30-10.30 to 9.30-11.00. I had no option so had to call work to advise the change.
Nobody turned up. At 11.00 I called the customer service center and they advised they couldn't get hold of the garage so they may be on their way to pick my car up. I said I could await for another hour but no longer. After an hour nobody turned up so I called the customer service again and same answer.
I decided then to cancel the whole booking and look for an alternative.
Fixter cannot guarantee any type of service and they do mostly depend on the garage so it's a complete joke. They work as an intermediate party for a service they cannot fulfill.
Go direct to a garage and avoid Fixter. Waster of time.