I'm sorry, but I am new to Lista and don't know how to do a Gin, or lower the days. But if you will tell me how I would be more than happy to try to help you out. Are you the one with the highest bid right now?
You cannot do a GIN until you have your seller wings, also, you cant do a GIN if there are bids already placed... and anyone who is not brand new should know that... I would LOVE to have these, but because of your only feedback being a bad one, Im not touching it :(