Have tried Black Circles twice. The first time the fitter I selected was great but, the second time, this year, they weren't available. I selected a fitter online, BC took it upon themselves to book me into a different one. I went to the fitter,waited, eventually fitter came in, said a locking wheel bolt was too tight and had broken, so they didn’t want to continue.
Took it to our local garage, it took four hours to get the broken bolt out, they charged me for two hours, seems PSA locking bolts are the worst. James at the local garage said none of the bolts were overtightened, the fitter just buggered it up. They got me the same tyres and did the job properly for slightly less money, Black Circles got nowt.
The car no longer has the locking wheel bolts, apparently nobody steals alloy wheels anymore.