Simply go to your message box and type music and send to 5900..
For musicplus.
Now download UC web handler.
Now on handler menu scroll to
proxy type: real host.
proxy server: musicplus.mtnonline .com
Save and browse with the 150mb.
After exhausting the 150mb given to you again, Send Cancel7d to 5900, Then wait for the reply then send D again to 5900.Then check your bal again when they reply you.