In earlier versions of the NEW market - A player cannot be sold to lower levels unless he is 2 star but after a lot of complaints it was made possible...
And currently I think in all the NEW market a player can be sold to lower levels...
The best way to know you are on the OLD or NEW market is the number of player available to bid when you enter the market...
If there are 25 or less players to bid then you are on the NEW market and if the number of player to bid is greater than 25 then you are on the OLD market...
Hope this helps...
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