Bajaj Finserv — Loan ROI and Tenor Increased 16% to 28% why?

Address:	Thane, Maharashtra, 421503
Website:	www.bajajfinserv.in

Dear sir,

I have taken loan from bajaj fin. of 2, 20, 000/-(emi is 9100) on jully2016.
On telephonic communication and commitment given from your executive to me, loan interest will be 16% and loan tenor will be 30 month. i got statement from bajaj fin. on oct. 1first week, then i have shock. why you are increase ROI 28% and tenor loan 36 month. I have all recording of telephonic communication.
please give me clarification or correction in loan ROI and Tenor.
I waiting for your positive response