Muthoot — Executive visiting house for emi without any legal notice or LOA letter nor given any call before visiting house

Address:

Bangalore

I want to raise raise a complaint on muthoot executive in Bangalore whose name is Kiran, he visited my house many times without any notification that he will be visiting house. I have not got any legal email from muthoot finance group. I had provided my new address to change in loan agreement and this person is miss-using my address by visiting house.This is an illegal activities.
No one can come to customer house unless they have legal notice from muthoot that they will be visiting. RBI rule says it's illegal.