Have not received TCS dividend 3 times.

Hi all,

I have not received my TCS dividend which was declared this time:mad: :mad: :mad: .I dont have the ECS activated for crediting the dividend.Last time i have changed my bank account and have written to TCS regarding the same.But they have sent the dividends again in the same bank account, so i have sent those dividends back to them requesting them to send them in my new account.But i have not received those dividends yet.Added to that they have not send me the latest dividend too. What am i expected to do at this point of time.Please do suggest me a possible way of getting all those dividends.
Thanks in advance.:)