Kiwi.com complaint: Dis-honest unprofessional response of KIWI

I booked a trip from Khartoum-Sudan to Toronto-Canada. There was 2 connections in this trip (abudhabi Barcelona). The flight from AbuDhabi to Barcelona was delayed for more than 6 hours so I miss the onward flight from Barcelona to Toronto. I contact kiwi by phone to find me another flight, the ask me to pay extra money €293.00 as a change fee, I paid the change fee directly to kiwi. Then they inform me that the flight is sold out they offer me another unacceptable route with more connection in Barcelona and London since My family was joining me have an infant , I refused to accept this route keep searching myself till I found the same route which the told me that it was sold, I booked it through Expedia.com bought a new tickets. Kiwi advised to make a request for refund the will refund it do their best to get the maximum refund from the airline since it wasn’t my fault. After waiting for 4 weeks the told me that my booking is not eligible for refund, so they didn’t.