Having a fight with AVDATA as we speak, this has happened on several occasions (read, every bill they have sent me) and rarely are they happy to accept that they are wrong. have had several accounts for places I have never been to, as well as recieving bills for taxi,runway entry,departure,ciruit entry and every time you push the TX button. They have a hard time believing that I didnt do four landings in three minutes. this system really needs to be looked at.
