BAD WEBSITE

Hi no matter how many times I keep a note of my pin, log in name, password etc its always wrong and I have to resend password. I get that and again its wrong. I am trying to upgrade. You search on phones/contract and it says sorry nothing available on your service??? I then finally manage to get through on the phone (wonders will never cease) and tell my tale of woe to the operator who then puts me through to upgrades to which I get cut off!!! I have never experienced a service provider with such a frustrating service/website. I want to change y provider altogether IF ONLY I COULD CONTACT SOME TO CANCEL IT. Aggggghhhhh!!!