Shocking service from Hifi Corporation

ORDER NUMBER : #*** I ordered on 30 November - a week later I am told there is no stock available. On Wednesday 11 December I receive the parcel, but with incorrect contents. I contact the Help Centre via e-mail. No Response. I contact the e-mail as on the website, no response. I resort to the online chat, speak to Chelsea and is promised it will be sorted within 24 hours. Nothing. On Thursday (26 hours later) I go to online chat again and it promised within one hour I will receive an SMS. Nothing. On Friday I chat online with Deon that states that the only thing he can do is escalate it... HUH? I try explaining that it has been and I want to speak to someone, but no numbers will be provided. It is now Saturday the 14th of December and I am still without any response... Shocking service!!