Mts — Plan Change still not yet completed

Address:

Chennai, Tamil Nadu

I have got the mts data card with the plan 999 - and i just used 3 to 4 GB for the one month so i asked the customer to change the plan they said i cant able to change the plan for post paid then i asked to deactivated the data card they did tat after paying the bill. after tat mts customer service called me and said tat why sir u have deactivated the service pls activate the service we will change the plan from next month nu and we will give u some offer to you i said ok if you change the plan i can activate the mts again... they have activated the data card and bill came for 800 rs as of offer after tat 3 month also no plan change i said y they said tat while deactivated time the request is taken so are able to change plan but this is 4 month still no plan change and i have charged 120 for value added service which is extra money on the 3month i said tat no value added is done by me .. they said u need to pay nu but 4 month also 120rs for value is added in my bill First time they said u have went to out of state and 2 time they said u may activated the sms pack what pack for the data card in sms i dono...3 time they said u have used some browser which is cost sir, , i just asked which one ... but no answer from them but now i am saying tat i will pay this bill up coming bill should be plan change as 550 .. now also they saying tat billing started sir, , , no cant able to change the plan what is this ? Really this is too bad ... if i call the customer service and ask some question like tis .. they just putting on mute for 20min also ... No use with mts showroom service i have asked to them they just calling to the mts service and asking no use now what shall i do for the mts