Airtel — weak internet connection

Address:	Tirupur, Tamil Nadu, 641606
Website:	customer care

I had the airtel connection very weak (15kbps).. I had called for airtel customer care number (198). Initially they pick my call and accept my request. But they didn't process my request. But now they simply refusing my call i can't use my network with comfortability.. (Area kaattupalayam, tiruppur). But when i try to port my number then only they called me and requested not to port my number. But no actions taken. They are kidding me. They want only customers. But they don't satisfy the customer needs. I want a good connection or cashback my last recharged money (149 inr) number ([protected]).