BSNL Broadband — non response from bsnl

Address:

Durg, Chhattisgarh

Dear Sir, I have brought BSNL BB connection on my existing 15 year old landline connection, On 14th someone came and installed a modem but could not connect with the laptop and gave phone no. of technical support personnel. However, since then I had called around 100 calls to various nos including that of SDO and DE but no one responded till now. I am really fed up with this kind of attitude of nature. Please advise a solution to get rid of this connection as well as my landline also.