Customer NO Service!!!!!!

I recently tried to pay my Metro PCS bill online via the express pay. I entered my cell # and acct # as required and was told that the two did not match. I went to the text msg on my cell from Metro PCS that notifies me of my balance and due date. The $ amt was different and the acct # was different. I tried calling the only customer service # and could not get past the automated answering system (it does not give you the option to talk to a human). The next day I went to my local store and was told that they had changed computer software and that all acct #'s had changed and that taxes had gone up on the service. I asked why I was not notified of these changes and was told that they didn't know. I asked for a phone number to talk to someone who would know and was told that there was none. i was told the corporate office does not deal with customers!
I get text msgs from Metro on all promos.....why don't they notify me of changes to my account???????
I was afraid that someone was trying to pull an identity theft on me! I am very angry at the customer NO service! I really would like to be able to talk to someone at Metro that can explain this to me!!!!!