SLINE69

hello I bought a slightly flood damaged Audi A5 2021. it’s got the touch screen MMI system, which was damaged and the mechanics replaced it and some other modules Im not too familiar I just paid him and told him sort it. now the MMI is working fine but this morning I found a problem: on the MMI when I view the vin it’s showing the vin of the replacement MMI and not the cars actual vin! I’ve asked a few people and they said they haven’t got a clue, had someone plug a diagnostic into the ecu and that’s showing the correct vin so not sure what module or part is responsible for the vin on the MMI?? Big pain in the back side because when it comes to selling the car , the potential buyer will think it’s stolen or something. really got me feeling Anxious! Any help or info on how to correct the MMI vin would be appreciated.