Aircel — not receiving upc for porting

Address:

Namakkal, Tamil Nadu, 637406

It's been 3 days since i've been trying to get the porting code, despite messages being "delivered" i am not receiving the unique code which is very irritating. And the tower strength fails most of the time. I have tried customer care but no response. Mostly not picking up call. I need to port my number to bsnl. And i need upc for porting. Please look into this matter as soon as possible as this is my official number.