Airtel — porting delayed by airtel

Address:

Navsari, Gujarat, 396445

I have applied to airtel for porting to bsnl since one month.
The airtel company is unnecessarily delaying my porting request.
Though i have paid their bill, after receiving my porting request. I was told to pay the bill. I have produced the bank pass book showing the clearance of airtel bill.

I have applied for porting and they are harrasing me using the same method.
Please contact me on below given numbers.
My mobile number is [protected] and another number is [protected].
My email id [protected]@yahoo.com