Hathway — ISP

Hi, I am in Bangalore and have hathway Internet with validity till 27th Oct. I have received a message stating recharge before due date to avail the offer to get 30 day extra for 3 month plan

I have done on 13th Oct and received a total of 120 days of service with due date.

But the balance 14 days of service in previous recharge is not counted if I ask they are saying if we give offer then the validity of earlier will not be counted this is as per Hathway and asking me again who asked you to do recharge.

So I am complaining why is this being worked like this and mentioning as offer and customers are losing few days.