Airtel — internet speed and 4g network

Address:

Dungarpur, Dungarpur, Rajasthan, 314001

I am unable to use the internet as internet speed is very slow and always there is problem regarding 4g network.. I have to switch the network mode to 2g to make a call. I have contacted many time on customer care but the issue remains the same. I have recharged my number with 1.4 gb/day but due to speed i can't use the same and my money got wasted. If it can't be solved i have to switch my network