Poor quality meat supply

I came to buy pre-packed lamb pack but they were out of stock on the 15th and was told to come back on the following Monday of which i did , well the lamb packs were available but to my suprise when I got home the meat that I bought was not lamb not even mutton but something totally different if you know the difference between lamb and mutton. The meat was so hard and even had those white lines you normally see from an old *** it was like a buck meat and yet I paid R180 per kilo thinking I'm buying the first grade lamb pre-packed. I'm so disappointed with bluff meat supply in bluff road.