Airtel — I pay internet but they are not giving internet

Address:

Airtel company, Kolkata, West Bengal

Today i recharge my mobile number
Airtel giving only calling facility but they are not giving data facility. I called customer care they are told you will use internet after 3 days. So why i will wait 3 days. For this also they avoid to add extra pack day in my account. They cheet me. For this what u will do? I called so many time they also avoid this matter. I pay money it should i use internet today
Why i will wait 3 days. If i wait they are also not add extra day validity in my account. Please help me. Airtel chatted me.