Took my car for its MOT on Friday and the guy testing it said that we need new front tyres "yesterday"but he was passing it and putting the tyres down as an advisory. I booked the tyres to be changed today however due to illness I've had to rearrange. When I rang they said I was booked in for a retest! It's been years since I took a car for a MOT and the piece of paper I have says "pass". I've checked the gov.uk website too and it says it's MOT'd until June 2020 - but could he be right and I need a retest or will it be an error?