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2. In the tubular part, specify the service and the deposit:
See also 3.2.4. Invoices
3. Create a document Cash Receipt with the transaction type from Customer. 
Specify the sales document.
See also 6.3.1.1. Cash Receipts (From Customer)
4. Create a Credit Note document to reduce the volume of the sales document with the transaction type Invoice Correction.
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5. On this tab, specify that this is an advance payment that can be used as the basis for a refund or applied to other accounts.
See also 3.2.7.2. Credit Notes (Goods Return and Invoice Correction)
6. Create document Cash payment with the transaction type To Customer to refund the deposit.
Specify the credit note.
See also 6.3.2.2. Cash Payments (To Customer)
7. Generate a report to check your actions.
Trial Balance For Dimension > add Company.
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