I can understand that you have to fix the loot system from league to group (which in my opinion if you do that you should increase the mobs that drop the gold protectorate coins). But already modify the prices is something that you should have had in mind before the first launch of the event. And if you want to do this at least you should place temporarily the npc to exchange coins with the "original" prices, cause u eliminated the npc without any notice.... and it's not fair to people who spent a lot of time farming with the old prices in mind