Disgrace

I had the worst experience with Qantas. First on the date i was supposed to travel to New Zealand on the 27 January 2023 my flight was canceled and moved to the next day 28 January 2023 without prior notice. Then i made the next flight and it was delayed for 2 hours. We managed to get to Sydney Australia and had to face another delay of 5 hours that caused my stay in Australia to exceed the 8hour limit with no visa needed so where we had to apply for an emergence transit Visa and we were given a $15 voucher to buy food but what take away food can you buy for that at an airport. We finally got going and after 3 hours of this 3.5 hour flight our plane made a midair u-turn, and instead of heading to Christchurch it landed in Auckland adding another hour to the flight then we were taken and told to sit in the passage at 3am to wait for the airport to reopen. We had to wait there for 3 and a half hours just to get back on this plane and continue to our final destination. We reported to Qantas that arrangements were made for me to travel to Invercargill and i am missing my ride and we are still waiting on their response. Well to make matters worse on my flight back to South Africa on 8 April 2023 the flights was on time but they have managed to lose my luggage. I have reported this to the airport and was told my bag was not loaded. Logging in to the luggage portal for Qantas it states we are still searching for your luggage.