I am an OCI holder with an NRE account with SBI. I am trying to set myself up for UPI cashless payments, but the instructions are non-existent even though OCI holders from select countries can use their international mobile numbers. I have a US phone number.

PhonePe doesn't seem to like SBI as it doesnt appear in the list of banks.
I stumbled upon the BHIM SBI Pay app, but that throws an SB001 Technical error during the first step.

Has anyone succeeded in doing so, and would you mind sharing the detailed steps to do so? Thanks in advance