Bad customer experience

Yesterday 27/11/18 I went to Woolies Sandton bought liver to cook for dinner though I could sense after cooking it a foul smell I decided not to judge before I tasted a piece but I ended up with diarrhea all night and day. Fast forward I went back 28/11/18 to Woolies to the return the liver and was given bad after sales customer experience and a refund the amount spent on the meat. What I expected was good customer service, after sales experience that would make me feel confident that Woolies understands my frustration, a Woolies that understands the reason behind buying oxliver at their store ( freshness, quality and good taste) which was the opposite. A Woolies that has trained staff that cares, values their customers ( who apologies and able to turn a bad situation to a good one ( consider the time I took off work to travel to back to Woolies for a return, sleepless night and time spent traveling and paying my doctor for consultation. I’m terribly disappointed that Woolies did not meet my expectations.