BSNL Telephone Exch ,Kalka (Complaint) — Signal Problem in Mohali

BSNL offers free roaming all over haryana including chandigarh, panchkula and mohali from 01 august, 2009. I am living in Pinjore and working in mohali. its a best offer to me so i was purchased a new pre-paid connection dt. 10 Aug 2009 of BSNL bearing No. [protected]. But when i am entered in chandigarh there no signal in chandigarh area including mohali. i already gave the number to all my colleague and relative. I request you to pls look after this problem seriously.