A screenshot is a claim, not a payment. Screenshots can be edited, sent twice, or be from a
transfer that later reversed. That is not a reason for suspicion of your customers. It is a
reason to have one step in your process where somebody looks at the actual GCash or bank
notification and says "yes, this arrived."
Make that a distinct step:
- Customer sends payment and the receipt.
- Someone checks it against your own account, not against the screenshot.
- Only then is the booking marked as paid.
If more than one person handles money, record who verified it. Not out of distrust. It is
what lets you resolve a discrepancy without a conversation about who did what.