I believe that you can dispute an MoT outcome including advisories with DVSA - they will arrange a reinspection and if found that the original one was incorrect action will be take aginst that centre - including cancellation of their approval or retraining whichever is required....
Worth looking into IMO.
This website explains BUT it does not talk about advisories only ones that have failed but should not and those that have passed that also should not.....
You probably knew that anyway but others might not....
Thinking of ALL the front line staff working to try to help others;Doctors, nurses, paramedics, cleaners, NA's, catering staff, support services and all others. Their work is appreciated more than you can ever realise-keep strong and safe.
Any typo that I make means the errorists win.
Remember Jo Cox and what she stood for.
Any comments above are only MY OPINION
and should be read as that.