Unable to register the account from USA mobile – IndPay Review

Hi - I am unable to register the account using a mobile number in USA. I get the error message right after I send the text message without any delay. Here is the error message. “Request could not be completed as delay from aggregator or mobile operator network unavailable, please check your mobile number or network”. Btw- the app used to work just fine before all this enhanced security making me register the account again. The cell phone number matches the account number with the bank. So no issues here.
Review by unhappy indian bank on IndPay.