Unpaid winning competition

I played a competition between kaizer chiefs and sundowns after received sms fro supabets invited me to predict score. I followed every step and my prediction was correct and thee sms said they will deposit meney to supabets account after two weeks. I made followup after two weeks and the respond I got was far to what I qas asking. My user name is Kgosi81. Please help to get what I deserve.