You did set a fixed price of 150 euros plus shipping for the ss and now after you received a matching offer you make an auction after removing price? We are not at an auction site like ebay. I got several reports on this, I really hope you find a solution for this but this is not the way we handle marketplace deals here
OK, Myles contacted me, he is simply overwhelmed by interest and does not know how to make fair decision, so it is OK for me, he will now try to find a fair solution that corresponds also with rules. No need to throw stones anymore^^