No service at Travelwings and bookings fail all the time

I tried to do an online booking for overseas travel with 4 passengers with Travelwings.com. It worked well and even the payment seemed to have been successful. Straight after the payment I received an email that the booking failed. I was in contact with them but nobody was able to tell me what went wrong. Instead I was advised just to try it again. So I did and surprise, surprise the price was about R1000 higher. I gave it a thought but sill did the booking. The card payment was successful again and I was happy. And again I received an email that the booking failed. I contacted them again via email and whatsapp. Their service of answering messages is very slow and most of them stayed unanswered. Inbetween I was told I should accept a change from R50000 to about R75000! I told them that this would be just nonsense and never heard from them again. After the second booking failed I never had any answer from them anymore. Guys, you waste your time with those companies. No service at all. I am somehow glad that it failed. What if I have to change or cancel my booking? I might have ended in a nightmare.