Tata Docomo — Tata docomo postpaid billing issue

Address:	Chennai, Tamil Nadu, 600004
Website:	www.tatadocomo.com/gmyaccount.aspx

I have taken TataDocomo connection in Nov 2015 (Relationship #[protected] and don't have any issues in service and monthly the bill amount is Rs. 500 only, but when I receive last month bill there is Rs. 1, 500 charged extra. when I inquired about the bill details they mentioned that there is a 800MB data internet has been used so the bill amount comes around Rs. 2000. and the way they treated me is very worst and without any information they cut the call. I asked them why there is no notifications sent to me regarding over usage of internet they simply replied its your carelessness in managing your data plan. Before I bought new smart phone I have informed customer care that I may require any other data plan and they mentioned that you don't need any other the current plan which I having is the perfect for your mobile. now they not even consider my request and simply said you need to pay the full bill amount. Kindly help me to get this issue resolved and reason why they (Customer care) treated me very bad. Regards, Joseph Lenin