I had my tyres replaced at Halfords Autocentre, it had to be done in a rush for me just before a 3 week holiday. Later in the day the TPMS sensor went off but I couldn't do anything about it right away due to the holiday (and actually wasn't sure what it meant until I'd spoken to Ford). When the dealer checked it they confirmed Halfords had replaced the £50 sensor with a normal value during the tyre replacement, they speculated that the sensor had been broken and they hadn't admitted it. I contacted the Halfords customer service who refused point blank to do anything about it without the receipt, which I couldn't find. But obviously Halfords know from the online booking reference I gave them that I'd booked and pre-paid online, and their computer system obviously then shows the completion of the job. I also had my credit card receipt to prove it. Both ends of the Halfords system are a disgrace, the people who do the work damage are not trained to work with modern TPMS sensors and/or they break your property and don't admit it - and then the customer service looks for any little get out to avoid having to rectify their mistakes. I strongly recommend you look elsewhere.