Guild Wars 2

Just to give some food to the discussion:
http://www.gw2spidy.com/item/9285

Price exploded..and the numbers of bags decreased from 3k to 125 (in total one guild would need 175 to upgrade everything which needs them) within 48 hours…pls anet do something about it…or the cost of the guild hall expansion for the wvw-guilds will be dictated by some traders..

For one Guild Hall upgrade our Guild needs 50 Heavy Supply Bag, the wiki says, it would be a lot from Lvl 80 centaurs found in WvW (the old Borderlands). Is their any known other source or is this rly a bug, that you can’t achieve them by killing centaurs?

Same in our Guild. No refund, everything seems to be gone.

We spend over 100k influence in our guild…cause we thaught it would speed up…so with your message it would say, my guild just wasted 100k influence???