Cancellation was requested in December

I took a contract with Auto Page in 2013 and last year December cancellation was requested and to my surprise MTN started loading airtime to my, when I queried this with Auto page I was told my number had been ported to MTN.<br> <br> I need to understand why MTN is continuing with a contract that had not been signed with them and cancelled.<br> <br> I need my number to be converted back to a prepaid.<br> <br> Cell number ***<br> <br> Contact number *** or *** <br>