I picked kiwi because it was cheaper than directly going to the airline and regardless of the reviews I didn't think an issue would happen with me and I was wrong. Unless you buy the "Kiwi Guarantee" you will not be supported. My flight with WizzAir was severely delayed and legally they offer an alternative or refund and this states it in the website. Kiwi maintained that because I don't have the guarantee I will have to pay regardless even though the carrier has offered it for free. I tried to manage this directly with WizzAir, unfortunately Kiwi uses their account to book your ticket so my booking details were under their WizzAir account hence I could not manage it. Forget about Kiwi's customer service, it was back and forth with either people who do not know what to do, or with robots. Finally after stress, I managed to find a number for WizzAir after a lot of digging and they let me book an alternative flight for free despite me booking via a third party. An excellent service from them. You're better off paying more to book directly with the carrier. Stay away.