Take your money but cant deliver and close your account

I ordered a XBOX ONE X on their website on the 4th of January 2018 with a expected delivery of 15th February. I was advised on the 14th February after I inquired that this was mved to the 23rd February. I was told that it was moved to first week of March and then end of March and eventually that they don't know when stock will be available. I left it at that but I have now discovered that they have closed down my online account and their web support has ignored 3 emails so far. In the mean time they have R8059.00 of my money and I ma being ignored. I no longer want this item and all I want is my money back as my sons birthday has long come and gone..