Play/shake everyday reward

I received a call this year in march from vodacom,they told me i have won 50 000on play/shake everyday and i believed them bcoz i play everyday,so they sent me a claim form via email n i fill the form and sent back to them,the form say i will receive my reward within 30 day so i waited until now its been almost 90 days now but nothing happen,when i call them they give me run around..i think it was a **** or they used that money for themselves,i can even tell then names,i am thinking of moving from vodacom to telkom,i've been using vodacom since 2007 but they dissapointed me