Vodacom agents are rude and disrespectful.

How is it that an agent phones me (unprompted) and immediately puts me on hold. And then when someone does finally answer, they ask for my dad (so why not phone him on his number). When I asked what this is in relation to, the phone gets put down on me. How is that service? Where's the general respect for clients? Vodacom are absolutely useless, always rude and disrespectful. I will be changing over to another service provider.