Online invoice payment matching to the bank feed.

Hi everyone,

I have just started using online invoicing, allowing online payments and applying the surcharge.  Client pays the invoice including the surcharge and MYOB closes the invoice.  But the closed invoice doesn't reflect the surcharge and is showing no balance due.  Then money comes in via the bank feed, including the surcharge and is sitting waiting to be allocated.  Do I create a payment against the initial invoice?  Do I manually add the surcharge as a line item to the invoice?  I can't find help on this in any of the online areas.

Thanks