Abn Amro — Regarding harassment

Address: 600004

I was using a credit card in abn amro about 10 years. Back. I do not even have the credit card no. right now.
After nearly 10 years, one person called mr. Rajesh having mobile no. [protected] called and informed that he is from Kotak Mahindra bank and came to my house thrice in a span of 10 days (i was not available whenever he came) and informed my wife that i have dues around 51k.
However, as far as my knowledge, i have paid fully in 2010. Initially he came with a person and subsequently 4 people have come along with him and harassed/questioned my wife.
For your information, my wife is a heart patient because of this and she is totally is upset mentally.
I told him over phone today to put it in writing and send it my e mail id [protected]@yahoo.com. And i will reply accordingly.
I want to put this on record to avoid further harassment
L Venkatakrishnan
Chennai