In message , "Robert
(Plymouth)" writes

Yikes! Yes they have had a lot of problems with garages mainly because
of the low pay and high turnover of staff, at least that's what they
said on You and Yours R4 a couple months ago

I always buy petrol at Sainsburys (or Morrisons). Apart from being
cheapest, I see the same staff, week after week.
--
Gordon H