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How can you put 4 digits in incorrectly 3 times???
It takes 4-6 business days for them to show up on your bank account in India so did you bother to wait or just guessed?
If you entered the wrong code x3 times then you can no longer confirm your bank account that way.
You would need to wait until the phones are up and running again and then ask customer services to add it for you.
They would probably request that you upload a copy of your bank statement to prove ownership of the bank account as you couldn't manage the code method.