hello , and iam so sorry for my weak language
Yesterday, I received a message from the owner of a competing site to site
Threatened that he will be remove my site from results of Google
And that he will register my site in many of the sites exchange visits
and he will Buy a link in one of sites selling links for my site
Then report my site in Google
what i can do to save my site ?
--- sorry again, my language is very poor ---
another question please
The site for this man Provides a statistical service -
rival site for my site 
-
and all the statistics provided by this site is wrong and not accurate
However, this site have highest in the top of Google results
Can I report Google about this site
thanks alot