Shocking service from Swiss Air

We were booked to fly on Swiss Air, from Berlin to Tromso, via Zurich, on 16th December 2022. Our flight to Zurich was delayed by weather conditions, so that we missed the connecting flight. We then had to stand in a queue for 5 hours, to obtain a new connection from 1 of 2 'help' desks. People queueing with us included pregnant women, young children and the elderly. We received a new booking on Austrian Air. This required us to spend a night in Vienna, meaning 2 expensive taxi fares (not refunded). When we arrived in Tromso, our luggage was missing, causing major inconvenience and costs. In addition, our hotel booking had been cancelled and we had to pay R12,090 to re-book. On arrival at Tromso airport en route to London, we found 1 case. The other was found, unattended in Cape Town airport on our return home. All attempts to contact Swiss Air (emails and telephonic) have been unsuccessful. We are shocked by the extremely bad service and have lost 1 day of vacation and over R17,000.