I am using airtel sim (09729515494) from last three year. really it is very cost. they will cut amount with out any reason. they provide pocket internet. it is very slow compare with any other packet internet. So with this reason I trying to port out. i got port number and applied to VIRGIN MOBILE. But the problem is with Airtel. they are not disconnecting. and distrubing me with councling calls. from last two days. pls suggest me what to do it's urgent.