You can get a replacement MOT certificate from any MOT centre if you’ve lost or damaged the original.
How to get a replacement
Contact an MOT centre - it doesn’t have to be the one that did the MOT.
Give them the vehicle registration (number plate) and log book (V5C) reference number.
The MOT centre will give you a replacement certificate.
You can’t apply for a replacement online.
How much it costs
The MOT centre can charge you £10 or half the full MOT test fee - whichever is the lower amount.