Any T Mobile users experience this before?

[PWB15]

When I try to send text I get this message

"Unable to send this message" Your device is not connected to a mobile network. Connect to a Wi-Fi network and try again"



When I try to call I get this message

"Mobile Network not available"

[MrFonzworth]

Hey crackhead, did you buy a prepaid phone? You need to unlock it first bud.