Airtel — paid postpaid bil in cash but not accounted even after 14 days. outgoing calls are stopped

Address:

Palakkad, Kerala, 679303

I paid an amount of rs 1200/- on[protected] at airtel office situated at pattambi, myladi communications, silver plaza building. Still today[protected] the amount is not accounted and outgoing calls are stopped by the company for not paying the bill.
I have complained to the said office three times, they informed me that it is due to some system complaints and normally it will take one week to get credited,
Now 2 week has gone and still they are not accounted