+ <li><a name="cust_pay_refund" href="man/FS/cust_pay_refund.html">cust_credit_bill</a> - Refund payment application. Links a refund to a payment.
+ <ul>
+ <li>payrefundnum - primary key
+ <li>paynum - <a href="#cust_pay">payment</a>
+ <li>refundnum - <a href="#cust_refund">refund</a>
+ <li>amount - amount applied
+ <li>_date
+ </ul>