Welcome to the Community forum, Ruby6201. I'll be here to provide you with the necessary information, but first, I'll need to clarify a few things.
 
To start, may I know the specifics of your concern? Are you referring to selecting a Payment Account when recording a Vendor Credit? You can also provide all necessary screenshots for us to have a visual reference of your concern.  
 
Any additional detailed information is greatly appreciated, as it will help me provide an accurate resolution.
 
Come back to this post with those details, and I'll be sure to offer support and assistance to you, Ruby6201. In the meantime, have a great day!