I purchased this Airtel number sometime in the mid of april 2007 from an Airtel dealer. It seems this number was used by another lady called PS Sangeetha before I purchased. But, it seems she had not informed any of her banks on the disconnection of this mobile number, therefore, I am getting very frequent calls from SBI cards Chennai division (044-42230036, 044-42230011, 044-42230000, 044-42230038) average = 5 calls per day. It is really irritating me and also disturbing my regular work because of SBI. I had clearly explained them on the person change for this mobile number, but still SBI keep on calling my mobile number asking old user. I am surprised that even SBI management doesn't know how to

1. Disseminate the call updates among their colleagues.
2. Verify with airtel on the number change.

If things goes on like this probably I have to take legal action against them.