No manager means no complaints

After the till froze during my paying for groceries with my card, the till lady and her supervisor discussed the matter in Zulu, never once apologised for the inconvenience and rebooted the till twice. At this point I was becoming agitated and said my patience was wearing thin, what was happening and how long would it take to conclude the transaction. I was told MAYBE a half hour. .. or so. I yelled I didn't have that type of time to waste. The till lady then felt encouraged to inform me of my bad attitude! Once the till rebooted and I paid for my transaction I walked off to hear the staff openly bad mouth me and my reaction to them. At which point I asked to speak with management to complain. I was told he's not available, he maybe went home. I can't complain. I was agitated at the lack of apology over the matter, the lack of urgency and then what fast became a blatant \***** the irritated customers "attitude"