OTP Email failure

I am not receiving any OTP's from them since October last year. Since then I always have to phone in to get the OTP sent by email to me. I have been trying to make a payment since this morning already, but so far the people at accounts have failed to get back to me with an OTP for about 3 times already. As at stands then, at this moment, I am completely unable to make any payments with my account, until someone actually comes back to me