How do I avoid fake payment screenshots?

Never release an order on a screenshot. Check that the money has reached your own bank, UPI or payment gateway app, or use a payment link so the gateway confirms it.

• A screenshot is only a picture. Your bank, UPI app or gateway dashboard is what shows that money has arrived.
• Match the amount and the payment reference in your app with the order before you hand it over.
• With a payment link, the gateway reports the status. In India the WhatsApp Payments API also reports it through the gateway's webhook notifications.
• For big or custom orders, take a deposit or full payment before you start cooking.
• Never ask for card numbers in the chat. WhatsApp's policy bans asking for full card or bank account numbers.