Rotten meat at Food *****s, Langenhoven Park

If I could I would give this particular branch (Langenhoven Park, Bloemfontein) a ZERO. So I buy pork neck which was on special at R85.95 per kilo. NOTHING on the shelf so I ask the butcher for some, which he packs & weighs. I get home, pop it in the deep-freeze for use over the weekend. I defrost it and could get the stench out of my kitchen - it was rotten. I return to this outlet, get ignored by management and speak to the butcher who apologized. He offered to replace it which I declined. It was in "issue" to get a refund and wanted to replace with similar product, do I really want more rotten meat? I mentioned that a particular Spar refunds double to cover for costs incurred, upon which he rep**** that he would try, but with no success. This is the 2nd time that I've bought off or close to off meat from this outlet. Also twice at other branches. I suspect that as soon as the meat is close to the "sell-by" date, it goes on special. Apparently a different branch in Bloemfontein had sold pies with grubs in them. This was published in the local newspaper I believe. This isn't about R68.75, but about the products.