Airtel — false claim about the fastest network and wrong prepaid info on official website.

Address:	Saharanpur, Uttar Pradesh, 247001
Website:	www.airtel.in

I tried to see my offers on the official website of airtel. I entered my number and it showed me a offer of rupee 149 with unlimited calling, 100 sms per day and 1gb data per day. I went to the retailer he also saw the same offer and recharged my prepaid plan. Then what i observed that the speed is pathetic and when called in customer care they told me the offer was different in which i get only 250 mb data and airtel to airtel free.
Why would i care airtel to airtel free and just 250 mb data in this date when every network is giving me plenty of data.
They showed me wrong info on the official website.
They claim to be the fastest network but i checked myself my other network is much faster.
Please help because that is how they are doing fraud with public.