Airtel — low signal strength - voice

I am using airtel prepaid, last one year i am not getting signal in my home. While reporting network issues in your site https://www.airtel.in/opennetwork/reportIssues, a number 12118 is provided
Which is directed to services of airtel rather than signal strength complaint.

We can find your mobile services in detail from your official site. So please do not show such older way of advertisement. Whatever be the mobile pack, we need to get range to do voice calls. Or else your site should be truthful to accept such complaints. Or else please do not show such airtel advertisements in tv. Customer service in right way is the biggest advertisement rather than wasting money in telecasting dialogues and celebrities