Security Deposit into and out of Company Cash account

We enter Security Deposits in Lease administration from which we create Bills and then interface them to AR to create Open items and apply payments against them.
When we have to refund this Security deposit, we enter a refund againts lease and interface to AP to creat a payment.
Customer --> Company (AR) --> Company (AP) --> Customer

However, between these steps, if I want to create a payment (check through AP, maybe) from the AR Security Deposit item to deposit to bank and then create another receivable item when I withdraw this amount from the bank and then pay the customer