Bajaj Finserv — Bajaj finserv staff carelessness

Address:

Mumbai City, Maharashtra, 400063

I had purchased a samsung a8 phone from reliance digital retail limited, malad (West), mumbai. And opted for emi option from bajaj finance on april 29, 2016.
Ranjit, a bajaj finance executive (Placed at reliance digital retail limited) assisted me with the documentation.
Prior to the documentation i had mentioned that i want the ecs to be auto-debited from my icici bank account[protected] instead of icici bank account[protected]. For which i gave a cancelled cheque of icici bank account[protected] and form filled for the same.
Later, on logging in to my loan account details in the bajaj finance website, i realised that the bank account was not updated.
I visited the store and informed ranjit that it has not been updated, for which he asked me to ignore the website info.
I received a text message from bajaj finance on may 29, 2016, mentioning the details of the emi in which the non-updated bank account number was mentioned.
I visited the store again on may 30, 2016. Ranjit was absent and there was another bajaj finance executive namrata singh. On telling her about the carelessness of ranjit, she apologised and asked me to visit the bajaj finance office at 271, business park, virwani industrial estate, 3rd floor, goregaon (East), mumbai.
I visited the bajaj finance office on may 31, 2016. The counter staff here also showed their helplessness and asked me to pay an advance emi and again give a cancelled cheque and the form. I have paid the advance emi and submitted the cancelled cheque and form again.
Inspite of doing all this, i have been charged bounce charges in my account.