I consider, that you are not right. Write to me in PM, we will communicate. or
This situation is familiar to me. Is ready to help. or
I consider, that you are not right. I am assured. I suggest it to discuss. Write to me in PM, we will communicate. or
In it something is. Now all became clear, many thanks for the help in this question. or
I consider, that you commit an error. Let's discuss it. Write to me in PM. or
It is very valuable information or
It is remarkable, this rather valuable opinion or
Completely I share your opinion. It is excellent idea. I support you. or
I consider, that you commit an error. I can defend the position. Write to me in PM, we will discuss. or
I congratulate, a magnificent idea or