My reserved post gone...

I woke up around 4am in the morning to grab the opportunities at 3P. Well, I saw there are quite a lot of high pay opportunities available. USD10 for the post of 50-100 words, isn’t it consider high pay? As a blogger, sure you will grab as many as you can right? Initially, I managed to grab two, somehow the opportunities has been gone without reason the moment I did my post submission. Only the red colour message appeared ‘All of the available posts for that opportunity have already been taken.’ Damn it… this really pissed me off! Can any blogger stand for it??