Rotten Induna wors

I bought Induna wors 2-3 weeks ago. Packed up my meat into the freezer as per usual, today when I wanted to eat the meat it had a really bad smell. I'm assuming that it was rotten or wasn't stored properly. I am so frustrated because the meat costed close to R200. All my money gone to waste. It's a pity I lost the till slip. I am a very angry customer and I'll never buy my meat there again. This was at Sky city mall