MTN SPIN AND WIN **** 6 MONTHS LATER STILL NO XBOX ONE!!!

I won an Xbox one in March 2018 I still have not received my prize!! This is PATHETIC SERVICE FORM SUCH A MAJOR BRAND!! I won with the SPIN AND WIN PROMO I have made numerous calls yet this is not resolved the competition has now changed to Mtn Wave what's happening with my prize MTN??? I'm going to report this to the local paper MTN SHOULD BE APPAULD FOR THEIR FALSE ADVERTISING HOW MAY OTHERS DID NOT RECEIVE A PRIZE YET???