Flamingo does not store additional fields

Hi, i have set some additional fields in Contactform like this:
flamingo_voornaam: “[Voornaam]”
flamingo_achternaam: “[your-name]”
flamingo_man-vrouw: “[man-vrouw]”
flamingo_adres: “[Adres]”
flamingo_postcode: “[Postcode]”
flamingo_woonplaats: “[Woonplaats]”
flamingo_email: “[your-email]”
flamingo_bedrag: “[your-number]”
flamingo_rekeningnummer: “[IBAN rekeningnummer]”

Bu they are not showing in the Flamingo Incomming messages. What did i do wrong? Can anyone help me please?