How soon since you ported? Some of the back end activations can take up to 24 hours to finalise after the basic sim functions turn on. Sometimes things like mms, and data are those later services enabled. Give it a day, and if it is still out of action then give tech support or live chat a buzz to help sort it for you.
* I am a Boost Australia customer. This is a peer to peer community where users help each other.
