Airtel — my complaint about network problem

My airtel 4g network automatically changing to 3g network and solw internet problem... From last 10 day iam facing this problem at home... What is the solution of this problem plz reply fast.. Before joining airtel i have use jio network... Jio network is giving slow data... That why have join airtel... I heard that airtel is a good network but in my area there is a network problem... Plz solve thiss problem or else i have to change the network...