EBS Posting - American Express - separate bank commisions

Hello all,

We are receiving from the bank an EBS posting related to American Express fees a total amount ( Expenses + bank commission)

For example we are receiving an amount of 120 related to 100 expenses and 20 of fees.

Now, the automatic posting is made with only one two items :

• Bank Account   120
• Bank Intermediate Account  120

We need to separate the expenses and the fees while loading the EBS ( we can find out the amount of the commission based on a formula)

• Bank Account   120
• Bank Intermediate Account  100
• Commission    20

Is any one already had already face this issue ? is there a way to meet this requirement ?

Thank you