Bharat Sanchar Nigam [BSNL] — bsnl 3g coverage

Address:

Chekadi street,w.pudpatti,srivilliputhur,viridhunagar, 626116

I am using BSNL sim last 5 years, but only 2g internet I am used for in my home, I need 3 g coverage in my location to ask customer care last 5 years asked need coverage problem, not improved only 2 g net, not solved my problem still now, I can recharge 444rs plan no use, how we can play with 2g net to watch??? Very poor customer care pls help me provide in my location in 3g coverage PLZZ sir
Pincode :626116