Kotak Mahindra Bank — nri a/c - otp not sent on registered foreign cell phone

Address:

Mumbai India, 400053

I have a nri account with kotak mahindra bank and i am absolutely left helpless by them as i need to transfer funds urgently, but i cant as the otp is not being generated or sent to my foreign registered phone. After numerous complaints nothing is done. All they say is that it is a technical problem.
They said they will call in one hour but i guess after 2 days their one hour is still not up.
Their idiotic customer services gave me a direct number to call, which turned out to be kotak life insurance policy helpline. Any other number you call leads to a dead end.
They only reply by email, which is not practical as its time consuming to wait for it.
They boast about their high security standards, but their security is so high that even you cant access your money in your own account.