The booking should be in writing before the car leaves. The hour you said on the phone should also sit in the message. Without a flight code the driver cannot see a delay. Without a door the drop-off is a guess.
Check the date, both addresses, the headcount, the child seat, the luggage, the return, and that the vehicle is named as a Vito, a Caravelle or a Sprinter. If there is waiting, see whether that time is inside the fare. If the hour changes, send it at once. +90 507 047 39 94 and WhatsApp land on the same line.