Airtel — complain about airtel showroom executive behavior

Address: Coimbatore, Tamil Nadu, 642103

Hi team,
I have recharged for my new sim which i bought from airtel showroom, peelamedu, coimbatore.

They bought 520 rupees from me.
495 (For recharge)+25 (Sim cost).

They told me sim will be activated within half an hour. But it was not (Activated after 3 hours)

Again
Recharge is not yet done. I am unable to call anyone.

When i reached them directly, they are not at all allowing inside of the airtel showroom. They are not treating customer as customers.

Then why do you have customer care executives?

I am still unable to use the airtel sim.