Originally Posted by atko

Ignore the jobsworth for refusing you a tax disc but he does have a point that your MOT is theoretically invalid as it has been altered. The MOT station should have re-issued you a valid MOT cert to avoid this.

You do need to get another certificate as although we police officers blessed with discretion and are not those black and white busy bodies will simply advise you that your MOT isn't a legal document and you need to get a re-print.

Good luck!!