Airtel — airtel sim card not activated

Address:

Chennai, Tamil Nadu, 600109

Bought an airtel 4g hotspot device with simcard. The given simcard is not yet activated and they told me tat time is 4hrs, today they gave me another simcard and same tat time, its been 4hrs now, not yet activated. U guys need money but u wont work. Dont u feel shame the way u provide service? I want this to be activated today if not take back ur useless 4g hoptspot device and refund what i spend. Airtel good for nothing. If not action us taken immediately, next thing i will file fir.