They didn't want to put it to standard because they said it would lock the ecu again!
If it were me i would have put you back to standard, carried out a diagnostic check, then remapped the cqr again and carried out more diagnostics to ensure it wasnt the software at fault
You dont simply dismiss customers concerns!!

Drop The Doc a PM as I know he has people up your way who might be able to help you out

How long have you had the map on the car? Do they have money back guarantee if you are not happy??