You wrote "I believe that even works"
without using my any of the method How can you say it won't be work. I sold More than 75 copies and never got a complaint.
You are new to SEOClerks and don't know how harmful a negative feed back is.
If you had any problem to implement it you should contact me before adding a negative feed back, Without any communication you did that.
If you were not satisfied you you could ask me for a refund.