[Resolved]  Tata Photon + — low bandwidth or no bandwidth

Address:

Chennai, Tamil Nadu

i have called tata photon toll free customer care several times , they responded and sent technician for repairing the problem , but whenever the technician is here to solve the problem , the problem disappears.
The problem is :the download speed is below 10kbps even at the beginning of the month when i am entitled to 1Mbps bandwidth( rarely the download speed peaks to 70Kbps), i downloaded mcafee tech check since i am installing mcafee internet security and the download speed is very low, after downloading the application tried installing it but it kept saying that there is a problem with the internet connection ,

also i get the message when i try to open webpages which open fine on other computers.
the message: this web page is not available
or they take a long time to load even 10 minutes .on mentioning this to the customer care they reply that the 1MB high speed bandwidth limit of 1Gb is over (still i am entitled to a speed of 33 Kbps ) only yahoo.com opens properly.