So got the call from HDFC a couple of days ago to further process the request. The executive asked the same questions as the original one, as to why I want it changed, and that whether I know its possible once. Afterwards, I was told that the request is registered and subsequent to the call, I received SMS confirmation registering the message. It also said I'll be informed when it is processed. Since then, nothing. How long does it usually take? Anyone with the experience?