BSNL Land line Phone - CONNECTION NOT ACTIVATED AFTER 4 MONTH OF REGISTRATION

Sir,

It is very painful to see the services of BSNL. I had applied for BSNL new Land Line
phone connection on 26-FEB-2010.and deposited the due amount Rs 500/- for
registration on same day(Demand No :-0000018375,phone No 2520961). After waiting 1 month I did not get any response from telephone department side. I went there and ask for reason . They told me that your connection attached to wrong exchange(Laxmi Road exchange). and need to reallocate new number(because new exchange Patel Nagar).waiting for next 2 month they had installed b phone and gave new number (2669417).Told this phone series did not have internet connection. while I had already told them that I need internet on that connection. They again said New Number will allocate for internet connection.Still this issue is pending.I met concern officer several time but no fruitful result . I have no idea where to register my complaint.