Failure to deliver, failure to respond, failure to refund

I placed an order with Much Max through the online store on 11 September 2017 for 2 costumes. I chose the delivery to my door option which their site states will take between 5-10 days.

1 month later by 9 October i still had not received my items. When i inquired with Much Max they advised it had been delivered. I set out in various emails that i had not received my items and requested a proof of delivery. To date (6 December) i have still not received a proof of delivery. After many back and forth emails Much Max said they had spoken to their insurer who had agreed to refund me only 50% of my order. This was on 9 November 2017 - to date i have not received that 50% refund.

Regarding the remainder of the 50% - Much max has been silent despite numerous emails from me following up. They now completely ignore and do not reply to my mails.

Their website makes false promises such as "We offer a 100% guarantee we will deliver your order to you. If for some reason you don't receive your order, we will replace it at our cost".

This has been the absolute worst service i have ever received and that after this company simply stole over R2000 from me.