I paid someone who's not listed as a supplier in our Sage 50 system and entered it as a bank payment. 

Then the event didn't happen and they have refunded me the full money.

I've googled around and seen plenty of examples as to how I can enter a refund from a Supplier but cannot find any examples of how to enter a refund from someone who is not a supplier.

Please can someone tell me how to do this.

Basically . . . I want to reverse a one off bank payment I made (but obviously don't want the money coming back into my account to register as income)

Many thanks in advance to anyone who can help me with this.