Tata Docomo — walky replacement

Address:

Bangalore, Karnataka, 560038

12 years am using tata indicom now tata docomo walky [protected], they give cdma landline device and i pay for it, now suddenly they move to cdma to gsm, so need to change device you will pay rs. 1500/- and not given same number,

Now old device not use, because its encrypted not able to use other network also, i ask the, they not replace and not given offers also, so my phone money fully lose, customer service talking very careless and worst words,

Tata docomo cheated all landline customers,

Please take action to them