Ask an expert: I paid for a full service twice but my car failed the NCT both times - am I entitled to a refund?

I paid a mechanic for a full service on my car - but it failed the NCT the following month. I'd assumed a full service would pick up on faults...

I paid the mechanic again to fix everything - but it failed the NCT for a second time, for many of the same reasons.

Read at Independent