Amount received via Credit Card

Dear all learned member of the the community:

We have an issue with payments received via myob online (credit card ).

Our customer paid three payments via credit card.  On receipt of these payments, myob knocked off the respective invoice. Myob (merchant) in turn after adjusting the surcharge remitted the funds to our linked bank account and appeared in bank feed.

While allocating the bank feed two of the payment are matched by the system correctly for the CR memo raised by by at the time of credit card receipt, however for the third payment myob is not showing  corresponding CR memo. 

The issue is now for us is that , the invoice is showing fully paid via a CR note but that CR is not appearing anywhere to link the same with bank feed receipt.

As the invoice is paid and closed this amount remain unallocated. 

appreciate your help to understand the issue and clearing the same.

Thanks & Regards

Sud