Competition function on app not working

I written several emails to DSTV as my competition entry on their app does not work. As before they tell me to uninstall and reinstall the app, it still doesn’t work. Then they send me a link to report the problem. The link has nothing to do with completion entries it’s for other rewards so obviously it won’t work. It’s so frustrating. I send screen shots of the problem and they can’t get it right. They must reply by email and not try and call me as I need concrete help.