what utter load of toss, if there is corrosion on the discs its basicly pitting of the discs, read your fail criteria on the computer and there is 2 failures for discs 1 for pitting and 1 for scoring amongst others , ive been testing for donkeys years now and allways watch posts on here about testers failing cars that according to the p/f users should have passed , ill bet there is only a handfull of mechanics on here and only half of those are testers, yet there is allways loads of replys talking shit,

if you were not happy you should have got an appeal form and sent of your 55 quid and waited and seen to see what happens!