Travelstart literally left us stranded in another country

This is a very long post , but if it warns one person ,it will be worth the writing.

We booked a family trip in May '21 using Travelstart for our flights. We booked return tickets to Zanzibar , including extra insurance for a date change (Booking Ref nr ZA***7) A few weeks before we left , I requested a date change on our return tickets. I contacted them on Whatsapp , where you literally have to wait for HOURS (if you are lucky , they answer the same day and you cannot phone them) ,which also means you cannot leave your phone for when they do reply... They did contact me and were helpful. I requested the new date , and he sent me a confirmation email with the payment link (you have to pay a fee to change the date). It expired very soon after , so I requested another one the next day. He sent it again and my husband paid it immediately (an amount also went off his credit card the next day). Thinking everything was now sorted out , we flew to Zanzibar and had a great time. We went for our Covid tests ($80 per person) 2 days before our return 'flight'. When I tried to check in , I saw that we weren't booked and that the flight they 'booked' us on after the date change , didn't even exist...! We were frantic, after realizing that we were never booked on a return flight , but also having a time limit with our Covid tests. We tried contacting Travelstart urgently , we emailed them , I begged them to answer on Whatsapp - no answer. We drove to the airport to see if we can sort something out with Kenya Airways , since our return flights were with them. They were helpful , but also basically told us that we were NOT booked on ANY flight home (not even our initial booking!)

We had no choice and had to buy new single tickets for R26 000 out of our pockets.

We have tried contacting them again , it is nearly impossible getting hold of anyone who will listen. We have sent emails , I sent messages. I have all the proof etc. I will not let this go until we have answers and our money back