Airtel — mnp for region

I applied for porting from airtel postpaid (Mumbai region) to airtel prepaid (Ncr region) i lost my network on old sim and then i inserted my new sim. But still by my sim is showing 'no service'. This number is of great value for me.. It is my both my personal and official number. I tried calling 121 but there is no option to call your representative and i have mailed to you by 4 times but still i am not getting any reply.. What kind of pathetic service is this??.. Dont you guys understand how important is porting for someone who has been associated with you by the same number for 8 years.. My airtel number is [protected] and alternate contact number is [protected] look into this matter urgently.. Mail id - [protected]@gmail.com