Airtel — rs.399 pack not working properly.

I recharged my airtel number with 4g sim on 11th august, 2017. At the time when i recharged my airtel number with rs.399 pack, airtel app showed it will give 1gb/day along with unlimited std, local calling to any number for 84 days! But sadly after 40 days o[censored]sing this pack, my unlimited calling stopped and now it tells my balance is 0 and i cannot make calls to any number. This a big fraud and cheating by airtel india and when i tried to call airtel customer care they have freaking automated system asking you to dial thus and that number but never help you or let you talk to a real person an airtel customer care representative. I've been using airtel for almost 7 years and now seriously thinking to switch my number to jio or vodafone and will encourage all my friends never to go for airtel as they cheat their customers and their customer care has crappy service. Shame on airtel.