Terrible client service

Vodacom billed me extra for something which is included in the upgrade as advertised. After phoning numerous times and even after they aproved my credit, I'm still waiting for the money to be transfered back into my account which they debited from. Yesterday, after calling client service centre again, they sent me an sms and said that they would tend to my query and that it has been escaled. I haven't heard or received any feedback since then and therefore hoping that social media would have the desired effect for them to wake up and follow through with their clients. As for now, all I can say is that this is terrible service and I have been a loyal vodacom contract subscriber for more than 10 years. If you are looking for service, I recommend you seek somewhere else.