Impossible to stop Vodacom spamming me

<p>I bought a new sim card, with the soul purpose that only my wife has that number, because my everyday / business phone receives a ton of irritating spam everyday. </p> <p>But now I cant get Vodacom to stop smapping me on this new nr. Everyday they send me a sms to subscribe to soccer news, and then now they started phoning me giving me options for new ringtones? </p> <p>I then phoned Vodacom customer care 5:04pm July 6th and spoke to Lucky, he said that he is verry sorry, but Vodacom will always spam me, there is no way to opt out.</p> <p> </p>