Most of the time tansactiion gets failed due to bank server down or some other issues. If your amount deducted and not received to the other person's account... customer support team says to check with bank or request chargeback..that too u need to wait for 3 days to hear that solution. Gpay doesn't take responsibility of end to end transaction. Customer has to communicate to banks, which is painful sometimes when the transaction amount is less but customer has to take call gpay and bank