Non-delivery, *********** management

Website says online orders delivered in 2-5 working days. It is now 21 November. My order was paid for in full on 20 October. I have called the call centre at least 25 times (I have proof of this) and have names of managers who promise to call back and never do. I have followed up every single day and sometimes twice a day and get the same nonsense answers each day that there is an error with the IT dept and they will escalate it. You have my money, you have the stock. Deliver it to me and sort out your own internal issues or matching of books later. This is beyond ridiculous. Manager Moegemat Agherdien does not get back to me despite 100 promises to do so. He refuses to return calls. The only helpful person there is Ethan Coulsen but his hands are cut off as the managers he has discussed this with keep dropping him too. He is the only person that has made an effort to resolve this and call me back but still I have nothing!