MTNL — 2996485, IMPROPER CONNECTION OF INTERNET AND THEIR BILL CHARGES

I AM SUFFERING FROM INTERNET SERVICE OF MTNL. THEY ARE NOT PROVIDING THE PROPER SERVICE OF INTERNET, BUT THEY PROVIDED THE FULL BILL OF IT. I AM DOING REGULARLY COMPLAINT OF IT ( 25TH SEPT 2008, NO. IS 867) PHONE NO. IS 29964851 NAME OF INDERJEET.
THEY ALWAYS SAID YOUR CABLE WILL BE STOLEN AND WE CANT PROVIDE INTERNET TO YOU.
CAN I SAY THAY, THEY CAN ONLY GENERATING THE BILL REGULARLY.
PLEASE SIR LOOK THIS MATTER PROPERLY RESOLVE IT AS EARLY POSSIBLE