@yazan1991 Let me help you, just type the method into Google (the general idea), if it comes up then it's public. (Of course, if there is a twist in the ebook then it's valid)
I was also very fishy and I contacted the seller a while back and after I asked him a lot of questions to verify the legitimacy of the method, he stopped responding. The reasoning I believe is that he knew that I knew there was something fishy going on.
I've already contacted Bleach about this ebook thread but he hasn't replied. Maybe a staff member should check it out? (Not saying there are any other working money ebooks and it is quite stupid of you to buy something like this @yazan1991)