Receive cash from customer and afterwards need to refund amount to customer

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Hello
Can anyone help me please.
Scenario 1-collect cash(Deposit) from customer Jenifer
I have create a deposit account under liability account with account type cash.
I have also create bank account MCB under current asset with account type receivable.

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create payment entry(Debit deposit and credit bank MCB)
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Account receivable(shows an outstanding amount)
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Scenario 2
I have to refund that deposit to the customer.
I have create supplier Jenifer on the system.
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I have create purchase invoice where i have specify the expense account as deposit.

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Create payment against that purchase invoice
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Issue arised i could not select bank MCB in field account paid from
Another issue arised is when i have created payment with another bank SBM ,an outstanding amount is still pending on accounts receivable.