Runwal Group — Late payment interest

I had taken a flat and for 2015/16 I was marked for late payment and it was discussed with the RM assigned.I also got the confirmation stating to make payments and the late fee will get waived off.I was promised by ur companies 2RM who were assigned but now they left the job. I am now being forced to pay the late fee which was informed me that u do not need to pay and same was reflecting in my future emi that I was paying. Now all of sudden I am force to pay without any prior intimation and got email that if not paid then won’t get the possession.