Waggies Dog food making my dog sick

I bought a bag as it was on special. This food has made my dog sick. I replaced it with other dog food which she originally ate. I made the mistake of trying a few days later to feed Waggies at alternative meal times; now she won't even eat the other dog food as she has now associated it with Waggies and is fast loosing weight which she can ill afford. I've seen reviews dating back to 2020 with similar issues. Why is Waggies still being sold by Checkers and Pick n Pay?