Terrible service

I have been a takealot customer for many years and never had a problem. On 30 November 2017 ñ ordered and paid for my order which includes my children's Christmas gifts. My order was delayed due to stock "ordered from supplier" even though the items showed as "in stock" on their site. After numerous emails sent as well as a complaint on Facebook, I was told my order will be delivered before 17:00 18 December. I received no communication. When I complained on 19 December they had the audacity to try and make it look like it was my mistake stating that I " refused delivery ". I was not contacted once. Not only is the service terrible but they can not even own up to their own mistakes! What can I do? Please help!