multi payments

Hi Community,

I'm new and trying to do a banking transaction.

I get deposits from Pinpayment, our online payment processing platform, which covers many clients fees and then the pinpayment fee is deducted from the overall deposit.

It appears this banking system does't let me pick up suppliers to apply the deduction. 

I even tried setting Pinpayment up as a customer and applying a negative to capture the payment but it still won't show in the invoices.

I now have these depostits backing up everyday and not sure how to process them.

Help please :), thank you.

Tracey