GIN is a set price that you would be willing to accept for the item and if someone chooses GIN then they get the item and auction is over right away. As for getting certified you go to the main website and I forgot the rest LOL forgive
Read my other one again hon its first part of the msg LOL but you cannot set it once someone has bid also if you are as new to this as I am you might not be able to till you are higher level