This is a b$$shit move NOT to allow people to retract an offer. I have seller right now just sitting on my offer. I dont have time to be waiting 30 days to see if he reject my offer. I bought something else. Now I have to send him a message stating I am no longer interested.. BTW He sent me a message the first time I sent an offer saying my offer was too low and said if I go up to a certain amount he will accept it and that I need to be quick! .. Well I was quick.. he wasnt.. Audiogon needs to step it up! No app is also a big loss.... anyway that is my opinions...