Corporation Bank — To the bank to change my contact cell on my account 50 days ago but nothing done

Address:

500038

Submitted application to the branch manager at corporation bank in srnagar, hyderabad, india 50 days ago and made many requests to followup and also made email to [protected]@corpbank but nothing done yet. So despicable service that can be done in 3 minutes. They boast internation standard service but it does not seem to be of very low quality service as of now. Sad that my account is stuck in this remote bank.