I'm using QB 2021 desktop. I cannot find the answer I need anywhere online, and I've been looking for a long time.

We paid our garagekeepers insurance online a couple of months ago and entered it as a check (not a bill). Today we got a refund check for $6.18 (and for all the hassle, I wish they'd have kept it). I need to know how to get the refund check into QB's undeposited funds and all I can find is the Make Deposits/ Enter a Credit Memo/ zero it out through Pay Bills method. 

In none of these steps can I make it show up when I do my next bank deposit. What am I missing -- or is this another example of QB's inability to handle things? Thanks for ANY help!