Wizz air and Kiwi.com pending payment issue

I booked a flight from Kiwi.com and got my PNR for Wizz air. I just wanted to buy 20kg baggage but I declined in the payment section and did not buy. Right now my booking shown as ''pending payment'' and there is a warning about that if the booking is not completed, I will not be able to check-in online or at the airport. I contacted with Wizz air, they need a booking email from Kiwi.com but I do not have this information, I asked to Kiwi.com but still have not received. In this case I would not be able to check-in and get to my flight. What I should do? I already paid my flight but cannot doing anything.