Guys, you must understand that both, the concert host (the company which organizes the concert) and LP's management must be 100% sure that the concert will be at least to 95% sold out otherwise it doesnt make sense to play.
It seems to me that in your countries Linkin Park CD's are not sold well, thats the reason why both (the host and the management) thinks that nobody will come to the concert or at least too less people to make money of it. And well, since both (host and management) are looking at the sellings to analyze success of a band, you guys have to make the sellings better instead of making some petitions, thats how the bussiness works.