Rotten food

I bought 15r chips at shoprite quagga center in pretoria west and i was soo hungry loocking forward to my lunch and it was my lst money.. I opened the chips and had a taste . The chips tasted offish and they wer hard. mxm I ws soo hearbroken. Then again on payday I went to buy meat for 500 beef and wors and chicken. 3 days later the beef in tge fridge started smelling offish and turning brown. mxm