Call Centre don't respond

I was recently drawn in a competition to win a substantial prize (Car to the value of R500000) promoted at Pick 'n Pay. However there was a problem related to the till slip connected to my entry. I e-mailed the Pick 'n Pay call center early 20/10/17 to see if there was some way in which they could help. However they simply did not respond. The result of this is that I was subsequently eliminated from the competition. This was quite sad as my family and I are in dire straits an need a new car. If they had responded and said that they couldn't help - that would be one thing, but the fact that there was simply no response at all indicates complete indifference. Clearly Pick 'n Pay no longer engenders the customer championing values it had in the past under Raymond Ackerman. It's just another greedy heartless company. And the callous attitude of it's staff have cost me R500000.