REALLY the advantage of participating... exhausting some Limited Crafting attempts, and really if you had just paid more, they would have left it alone(no adjustment to L2Store)... but maybe if you had all waited, the bundle would have been cheaper, and we might have even gotten reduced Price for singles(the singles YOU bought are still the same price... maybe if there was a reduction on singles you could be entitled to some adjustment)
I find it offensive that YOU recieved any adjustment... You decided to buy and Clicked the button(period) if you buy 15 boxes of cookies at the normal price $2.49, and a week later the same cookies are 3 boxes for $5.00... your only option is to buy more, the store is not going to discuss whether they owe you more boxes or a refund.