1: Extraordinary claims require extraordinary proof. If it does what it says, you should have no problem with this.
2: What proof will you accept that you are wrong? You ask us to change our mind, but we cannot change yours?
3: It is not our responsibility to disprove your claims, but rather your responsibility to prove them.
4. Personal testamonials are not proof.

What part of ‘meow’ don’t you understand?