Well sounds as if you are going thru a proxy. But if you are on a cable connection you IP isnt hidden. That is detected. I know i have had many arguments with my ISP about this fact. Your line IP is detected but if you go thru a proxy it is kinda hidden. Since they can tell what IP you are using from the start the Proxy doesnt serve its full purpose.
I would email them at myspace and find out if your IP did get banned. It might be cause of the proxy use that you did get banned. I know that i can ban specific IP's from my site thru my CPanel. I would guess that my space has that also.
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Phone: LG Optimus G Pro
Running: Stock JB from LG with Nova Launcher