Can't Unsubscribe from MTNYello Spam SMS's

Good day<br> <br> I would like to request that I be unsubscribed from ALL MTN Marketing and MTNYello SMS's.<br> <br> I haven't opted in on these SMS's and you don't get the option to unsubscribe. I don't want these SMS's. It's annoying and if you start receiving 2-3 of these per day it gets to your nerves. I am a busy person. When my phone notifies me of sms's I need to look and seeing something from MTN is really getting to me.<br> <br> I don't want to receive anything from MTN anymore and I would very much like to see where I opted in for any marketing sms's from MTN. If you can't stop these sms's I want MTN to take my contract and cancel it immediately. It's annoying and I want a Service Provider to leave me alone so I can get by my daily business without being interrupted 2 to 3 times a day.<br> <br> I phoned 808 and was transferred from point to point and eventually the call was dropped. The feedback from the first person was that MTN can't remove me from these SMS's. WHAT????<br> <br> Please mark my words, if this can't be stopped, MTN can cancel my Contract on their expense as I didn't want marketing related nonsense sent to me. I WANT IT STOPPED.