Damaged/scratched Windows Server 2022 activation key while scratching it off.

Hi All

I am posting on behalf of my end-user, who has managed to damage part of the sticker while scratching it off, leaving him unable to activate his Windows Server 2022 STD installation (i have blacked out part of the SN above for privacy reasons)

Please advice on how to proceed to either retrieve the key itself, or to get a new key from MS After Sales Support. We are able to provide proof of purchase (invoice) and the picture above as well.