Airtel — network and data usage

Address:	Mumbai City, Maharashtra, 400056
Website:	all

Since i have ported my network from reliance into airtel continuously i am facing problem in using data with a single point of network in my mobile, also i cant use 2mb data per day request you to let me know what should i do with 20gb per month data and what should i do with the per month exceeding in my account for which every month i am getting bill also.