To bring this to a close, after over a week of trying to get in touch I finally heard from them yesterday evening. I got a reminder via SMS regarding my appointment which I then replied to saying I wouldn't be able to attend as I'd had no response via email, telephone or Facebook message. I received a phone call whilst in the borders (I had no signal and had to hang up) and I then received an email asking for me to call on Tuesday, be a man and apologise - for what exactly I'm still not sure. Quite a bizarre exchange of emails followed (especially surprising since I'd struggled to get one email out of them in the previous 2 weeks), the conclusion being that I won't be considering Pendle Performance for any work on my van in the future.
Highlight of my interaction was being accused of "acting like a baby spitting his dummy out" for simply for wanting to communicate with a company I was trying to give £550 to.
