Bought the E-Book, sadly it's one I already bought around early January. After he sent me the pdf file, I sent him a txt file with the same ebook to show him that I already knew about it and I guess there won't be a refund given with proof provided that I knew about it. Hence, all you gotta use is common sense to figure out the method.
I'm sorry you bought a similar method elsewhere, but I couldn't always know who knew or didn't knew the method, there's surely not just me doing this.
But this eBook is relatively cheap, you can simply get a few times back with doing this method.