Contract lapsed, please terminate services

From Nashua Mobile, my account moved to Autopage. The last day for the contact was 12 February 2014. I have been endlessly seeking to port to other networks or even get my number moved to pre-paid, till to date, I am still stuck in a relationship I no longer desire. I have been to the Glen store a number of times, and could not get assisted. The store has since closed, so I cant keep going there anymore. I have sent emails, and issue is yet to be resolved, and no one bothers to get back to me. I call your call centre, and I am told all is in order, and I can port. Till to day, my port applications have been unsuccessful. What do I need to do to get out of this?