My MOT booking was cancelled today, they said that it's system error which allowed me to book and they are fully booked. I went on to book other place from Halfords, turned out that discount code now won't work, so I would need to pay more than original booking they cancelled. Then, I thought, I better call the other garage to check if they ACTUALLY have the slots that system shows - and guess what? they don't ! they went as far as saying that booking system is a joke. It's needless to say they couldn't help me on the phone, neither on the chat - it was rather waste of time btw. I ended up booking with kwik fit, and awaiting refund (which I don't expect anytime soon after reading their policies)