MTN Play Harvest Frenzy

<p>Good morning,I've been getting this sms on my phone that I am subscribed to MTN Play Harvest Frenzy, I have not subscribed to this service, how can MTN bill me for something I did not authorise?!?!Surely, this is *****?!?!</p> <p>I've tried calling/ emailing to cancel but the consultants are of no help. Why am I supposed to go through the pain of cancelling this service when I did not subscribe to it?!?!</p>