How to block/unblock a UPI collect request?

If you feel that a collect request sent to you is not genuine then you can block the requester in the app. To block a request, go to ‘Payment Requests’ under UPI, tap on the collect request you want to block, and then tap on the “Block” button to avoid responding to that request in the future. In order to unblock the user, go to the collect request received from that user & tap on the ‘Unblock’ button.