Try these test beneficiary account details to understand possible responses

bene_account_numberResponse
1111111111{"data":[{"bene_account_number":"Amy John","ifsc_code":"KKBK0000430","recepient_name":"Amy John","email_id":"[email protected]","mobile_number":"7000000000","merchant_ref_id":"ptxc_1223","open_transaction_ref_id":"optx101628","bank_ref_num":101628,"verification_status":"success","verification_message":"Transaction Successful","account_holder_name":"Amy John","created_at":"2020-08-06 01:07:43"}],"status":200}
2222222222{"data":[{"bene_account_number":"Amy John","ifsc_code":"KKBK0000430","recepient_name":"Amy John","email_id":"[email protected]","mobile_number":"7000000000","merchant_ref_id":"ptxc_1223","open_transaction_ref_id":"optx101629","bank_ref_num":101629,"verification_status":"failed","verification_message":"Invalid Account Number","account_holder_name":"Amy John","created_at":"2020-08-06 01:10:05"}],"status":200}
3333333333{"message": "Duplicate merchant_ref_id provided","status": 412}
4444444444{"message": "Insufficient Balance","status": 412}
any other numbers{"data":[{"bene_account_number":"Amy John","ifsc_code":"KKBK0000430","recepient_name":"Amy John","email_id":"[email protected]","mobile_number":"7000000000","merchant_ref_id":"ptxc_1223","open_transaction_ref_id":"optx101631","bank_ref_num":101631,"verification_status":"failed","verification_message":"Invalid Account Number","account_holder_name":"Amy John","created_at":"2020-08-06 01:10:55"}],"status":200}