MOT Failure - Opinions Please

You have been very unfortunate but i suppose ultimately your the one who presented it for test so the blame in Dvsa,s eyes will lie with yourself, i have one fail on my 20+ yr history for a seat slider that jumped off the rail, i popped it straight back on and he failed it then passed it without me even leaving the test lane ! Rang Vosa at the time and they werent interested but told me not to worry about it as it was an isolated incident and wouldnt adversely affect my OCRS score