Airtel — bill charged but not activated the service

Address:

Chennai, Tamil Nadu, 600102

I have requested to activate basis services on my new Airtel number but until now there s no response from Airtel. Horrible service ..they have trained executive who like automated machine keep repeating that we will get back to you but nobody gets back.now it's more than 20 days even tired calling them.

Airtel executive don't respond back to customers.
They hardly understand the customer queries.
They have such big name .still just to compete they giving smaller packs but customer service sucks.