Vodacom sending unsolicited SMS messages

<p>I was under the impression that even though sending unsolicited sms messages was not ******* but the person/organisation sending these had to have an "opt out" in the message.</p> <p> </p> <p>Since yesterday I have been inundated with messages apparently from Vodacom on my sms line reserved totally for my alarm system. This is very frustrating as they are sending these sms messages at all hours of the day and I have to look at them in case there is a break in at my business.</p> <p> </p> <p>I have been a customer at Vodacom for over 30 years and if this is the way they conduct business with me then I should cancel every contract.</p> <p> </p> <p>****ed off consumer</p>