Tata Docomo — post paid billing

Address:

Krishna, Andhra Pradesh

my name is Ratnam Dodda, i am working as a Asst.Prof., one the reputed organization in vijayawada. i have tata docomo gsm post paid numbers : [protected],[protected].last month(november) i got bill 1360 rupees, actually i am in speed 99 and CUG plan but they changed the my plan without my permission and bill generated as 199 rental plan, last month i had complaint to customer care and i had post consumer court online, then they had call to me and paid 650 rupees only and they are changed to my old plan(speed 99) and i have confirmed message also . but this month(december) again they are generating bill 199 rental plan. now i got 1560 rupees .I complaint to docomo customer about billing at 26th december 2012,but no reply I got.what i should i do ,I will go to consumer court . I have all proofs means complaint id numbers and complaint date and their names also.january 11th was the last date to pay my payment. we are irretating same problem repeat again and again. solve my problem as early as possible.

thank u sir
Ratnam Dodda
Asst.Prof.
[protected],[protected]