Vendor credit has positive open balance

Vendor credit invoice has positive open balance (instead of negative) that is affecting AP aging report but not the outstanding balance of A/P

Vendor Centre

Transactions Show Balance Details Filter Open

Type Ref Amount Open Balance

Bill  AAA  26681.59   26681.59

Credit  BBB -461.04   5458.50

Total 26220.55   32140.09

Vendor Balance on the left side screen 26665.64

Unpaid Bills Detail  

Type   Number  Open Balance

Credit Card Credit   Clear ref     -

Deposit    Various    433.97

Credit     BBB   5458.50

Bill         AAA   26681.59

Total       38247.28

A/P Aging Summary

Current  1-30  31-60  61-90  total

0     26681.59  -449.92  433.97   5673.22   32338.86

Pay Bills Window

Ref  Amt Due

AAA  26681.59

Clear ref 5673.22

                433.97

Set Credits Window

Ref  Credit Amt Amt to Use Credit Balance

BBB 461.04    0   5458.50

We have a vendor that will give the credit invoices for entering in QB but the refund checks will be mailed later here at the head office or to the stores, we have 9 stores, and they will mail them to head office for bank deposit. We have to record so our inventory balance matches what's in the stores. We close monthly.

I tried deleting the credit and entering it again but that month was already closed. I think the credit card credit/refund (crediting AP) and Deposit (crediting AP) that my colleague made what's affecting this. How do I get rid of that positive open balance of the credit? TIA