Online payment surcharge

Hi Doreen 

I ticked the box to add the surcharge to the client.  In april we issued 4 x invoices to a client who wanted to pay via credit card totalling $32,225.65.  The 1.8% surcharge was $580.06.  The client paid this and MYOB credited the funds (including the surcharge) to our account ($32,805.71).

When we received the invoice from MYOB at the end of April for the fees it totalled $591.51. This included $580.06 + $1.00 (for 4 transaction fees) + an additional $10.45.  I called MYOB to query what the additional $10.45 was for.  After an hour on the phone they determined that they had also charged me 1.8% surcharge on the $580.06 surcharge.  They didn't seem to know why this had happened and whether it should be refunded or not.

I couldn't find anything in the information that we should be charged this additional fee.  If this is part of the fee structure would you advise exactly where this is stated.  I am trying to determine if I have been incorrectly charged and should chase a refund and ensure it doesn't continue each month or whether I need to wear it.  Thank you