Check Received Instead of Credit Memo in A/P

Summary

We have a case where vendors do not create Credit Memo's but Instead send the Company a Check. Is there a standard practice on how to handle this transaction and apply to a purchase order?

Content

We have a case where certain vendors do not issue credit memos. These vendors refuse to issue credit memos and will only issue the company a check payment back.

The issue is that we would like to apply the credit against the Purchase Order if it has one. In a normal case we would:

1. Receive the credit memo

2. create a credit memo invoice