my daughter went in for 1 tyre and they said ALL 4 needed replacement , i told her to tell them to NOT do anything and leave, as i had checked the treads on the tyres the previous week, and 3 where fine 4mm on , but 1 was on the wear mark, 2mm and I mentioned she should be thinking of changing.....
When she told them and offered to get the manager to speak to me, while she got on to trading standards , they backed down and apologised and did 1 tyre at at a very reduced price !!!!!!!
This was many years ago, when she was around 20 , but still quite assertive and has always stood up for her rights, early coaching from a young age.......
Trouble with MOTS now is , its an immediate fail and recorded, and at one time the DVLA even had a note about this , that it was illegal to drive away !!!!!! Now changed to advisory
I used to drive in upto 1 month before MOT due and if it failed, I could still use the OLD certificate while sorting the failing items out , many years ago , even the garages thought that , until it all got automated.
The MOT only really tells the status on that day , not 11mths 28days later !!
Please note, you can redeem your voucher until 21st May 2021. The last available date you are able to have your free MOT carried out is 21st November 2021.