Terrible Service from Debonairs Maponya Mall

I ordered 2 Pizzas for my kids on the 23rd of August at 7pm. My order was successful and the app showed the order would be delivered in an hour and 30 min. An hour later, checking the app I couldn't track my order anymore. I then started to call the Maponya mall call center or contact number and I would get through to the call center and kept being transferred from pillar to post without any response. At 9pm I spoke to the call center Team leader who then promised me that they will get assistance for me to get my kids food. I called and called until they closed or they just ignored me. At 9.30pm a call comes through from the driver telling me to wait outside he will be there in 2 minutes. I went to wait outside, only for the driver to not show up until 15 minutes later, with a cold Pizza that was stuck to the box. I then send my complaint through via Facebook and Twitter and on Twitter I was issued a case number : CAS-***-H2F6X8 and I have been promised that the team will get back to me and nothing has been to date. I am at my wits end trying to get a simple apology and a refund however nothing is happening