i wanted to give you some advice on how to change your post in order to have a tiny chance of finding the correct seller:
1) change this post's title... "i am ready for buy" says nothing about your intentions, what are the chances somebody owning this book will open this thread (hint: close to 0).
If you change the title to "[WTB] ebook about phreaking and isp hacking"
2) let somebody proofread and correct at least part of your grammar mistakes... I'm not a native speaker, but i think that if you change your text to the following, you might have a better shot:
I'm looking for somebody who owns an ebook about following topics: "PHREAK EXPLOITING MOBILE ISP PROVIDER LOOPHOLE".
If somebody owns such a book, i'd be interested in purchasing it. You can contact me trough PM on this forum, or by replying to this topic
3) you're a brand new member, it would be wise if you used a trusted forum escrow. Using an escrow would be safer for you, and any potential seller, thus enhancing your chances of finding such an ebook.
Good luck!