Don't book flights through Kiwi.com

I had the most ********** service with kiwi.com. After inquiring about flight changes, they did not respond as promised - with alternative flight options. When I called again 2 days later they reported that my request for flight changes had not even been logged in their system. I requested extra luggage, one bag at 40 kgs through kiwi.com, I made it clear that this would be an exceptional request because the airline would usually only allow 2 bags at maximum 20 kgs each, they assured me they would do their best so I paid for it (a higher cost than if I had paid directly through the airline for 2 separate bags). Since I was moving country this was an especially stressful ordeal that was handled in the most unprofessional way by Kiwi.com staff - they assured me that all was well, right up until I received the check-in email where it included contradicting information regarding luggage. According to the airline I was flying with, details of my flight booking could be changed up to 30 minutes before the flight time. Whereas different kiwi staff informed me of completely different time constraints each time I called. According to the airline, their agreement with Kiwi.com was that their time constraints would remain the same across their airline and Kiwi.com, but this was clearly not the case. When booking through a company such as Kiwi, the promise of the company - and thus the expectation of the client - is to have the booking process made easier and less complicated! But in my experience dealing with kiwi and their *********** staff made an already stressful situation amplified. I can't advise against this company enough!!