We see several couples together, but then we also see them individually. Each of them has their own billing account. If one of them makes a cash payment (check) and part of that payment needs to be applied to the other spouse's account, how do I do that? I am trying to avoid refunding a portion of the payment back to the spouse who gave us the check and then asking for a separate payment to be applied to the other spouse's account. Thoughts on this? It happens a lot. Thank you.