Horrible automated phone campaign by Vodacom

Vodacom just power dailled me by computer. I was given only one option, i.e. to press 1 and receive a quote for something. There was no option to opt out or to remove me from their list or to speak to a human. To make matters worde, they called with a private number which means I cannot even block the number. I was a Vodacom customer but I ported my number away from them due to their arrogance and incompetence and I will never ever consider them for anything. But this is a new low, even for them. Surely, this is *******?