[Resolved]  Reliance Communications — Overcharging than credit limit

I have been using reliance 3G 599/-unlimited plan earlier.Recently i was told that the company is upgrading its services to 4G and i was made to purchase a wipod amounting 1700/-with the assurance that my old plan will continue but in reality i was handed a 1100 monthly plan without my consent.I continued your services for which i got a bill of 1265/- according to my past experience i never got bill more than my monthly plan of Rs 599/ but i still paid 1265/-Rs but next month my bill came to 3045/-approx when my credit limit was 2000/-Rs how did such thing happen.I have recently got an email asking me to clear 3469 Rs(In this rental charge of 500 approx incuded even after i had called to terminate my service was incuded).some Irfan has send me a legal notice yesterday.Is this not unfair?.