How can I check to see if process receipt is already being used?

Hey developers, so I am making an admin system and I have a donate command where if a player donates, they get donor commands (assuming they haven’t already donated), for that, I am using process receipt.

However, with process receipt, it can only be called once per game, meaning if the owner already had a process receipt script in their game, it could potentially mess up their developer products and what not, is there a way to prevent this?