By stating I am a liar, insinuates in an indirect manner that my opinion and theory is pompous
You need to look up "pompous." It has nothing do with you being a liar.
I have no right posting my opinion
No one insinuated anything of the kind. You were called a liar because you almost certainly are one, and the lengths to which you're going to defend your company--er, I mean, the company you ordered from--and your statements makes this all the more likely.
That is all, I'm not wasting another typed word or thought on this
You know, except for all the words and half-thoughts that follow....