Beyond Frustrated with the worst service EVER!

Yet again the worst service i have ever recieved! I did my upgrade online and have been through over 10 phonecalls, have no phone but i am paying for the bill and NOONE wants to help me. The agents do not take action, transfer you without you knowing it and worst of all hang up on you after a 43min call. I just want what i am paying for please - is that too much to ask??