Non existent customer service!

I upgraded my contract online with Vodacom. I got an sms stating that my order will be delivered on 19 December. I immediately tried making contact with Skynet as I wasnot at home and had little to no signal. I used all channels...email, whatsapp and phone calls. No response on email, automated replies on whatsapp and no answer via phone calls. I got cut off everytime I chose the option to leave a message. There is no way of getting a hold of them and no further uodates with regards to my order. Their service is non existent. Why Vodacom is using them, is beyond me!