Airtel — not able to use data since 6 days

Address:

Hyderabad, Andhra Pradesh, 500048

Recently changed the plan with airtel, since then not able to use data, called several time and raised the issue, every time they are telling will be resolved in 24 hours, the same is still persisting. No one from airtel side is calling or giving a clear picture i am only calling 2-3 times a day, tried all the tricks told by them.
The complain nos are[protected] and 85504350.
Mine is postpaid with no-[protected].

If somebody can help i will be obliged.