Harassment & defamation by finance company due to wrong at their end

Hi, I opted for a consumer durable loan and due to incorrect bank account updation from their end they charges me for 3 check bouncing charges. In the first month itself i have provided them the correct bank details however then also they submitted 2 more times and got the checks bounced. The check bounce is also not due to insufficient funds, it is as i had closed that account. I went to the branch 3 time to get the correct details updated and once to get the check bounce charges waived off and it was promised to me as well. Now almost after one year, their collection agency called me and misbehaved and humiliated me and my wife. Post the call i went to the same branch and when asked the Manager, he said that he missed to waive off the charges and he provided me the NOC then and there. Post that when i called the Customer care to stop the collection agency calls, they said it will continue for 48 hours and i continued to get humiliated. Can i ask for compensation?