********** subscriptions

I'm being subscribed for things that I've never selected. I had this issue a few months ago, and contacted the call centre numerous times. Promises of managers that would phone me to resolve it to refer to technical, because it's clearly done technical issue! I was concerned about my number being cloned. So now again my airtime gets taken for things I've never signed up for... This is absolutely ridiculous and some kind of ***** by MTN.