MTN allocates my active sim number to someone without notifying me.

<p>For approximately over a week now I have no network connectivity on my MTN sim (error: emergency calls only).</p> <p>Today I decided to go to Gateway MTN to speak to a sales representative, explaining that I have a prepaid MTN sim and I am, currently using it for Afrihost data purposes and that there has been no network connectivity on that number.</p> <p>The sales representative informed after checking on her PC that the MTN number in question has been allocated to someone else who was able to Rica this number onto their name few days ago.</p> <p>How is this possible when I currently have data on the sim and the sim has always been actively in use.</p> <p> </p> <p>Does MTN not know what activities are going on with their sims?.</p> <p>Should I not have been consulted before the number was reallocated?</p>