So as you can see I'm a donator, and I'm trying to get the role on discord, so I'm doing /linkdiscord samm#5522 (spelling, capitals, and numbers are correct) and yet I get a message saying they can't find me
The screenshot you attached isn't working. Spoiler EDIT: People other than @RealCantBreathe are also experiencing this. (In #general on Discord)
It's a bug that happens to some people when trying to link their discord. You can solve this by sending a Manager in dms proof of it not working. It might be also be that you could of had linked it to an another discord account.
If they had previously linked their Minecraft account to their Discord account, it would result in this message: If they clearly haven't already connected a Discord account, and the account they are typing in is correct, there's definitely some strange bug ocurring.
I am aware that it's a bug was just assuring. Can't see their image on the thread but hopefully Scout or Ezz can fix this.