Airtel — signal strength low. voice calls not audible. data not transfer through. whatsapp failed

Address:

500008

Airtel 4g Sim.Mobile: MOTO 4g plus. Rs.448 pakge/31.12.18.Voice calls not audiable.Every time I have to come out my house to attnd calls. My WhatsApp data/, images/Videos not transfrng since last 10 days.I depend on BSNL Wi-fi at home. Outside Airtel not responding.If not restored, I seek Mobile portability at the cost of losing package amunt.