How or where can I write a review about a website or company?

[NL.]

I am trying to write a review about a company that gives services such as resumes, articles, essays. The website of the company does not have any specific area that you can write reviews or testimonials or complains. Since this company is a rip off and me and a friend of mine already had a terrible service from them and we lost a good sum of money, we want to write a review about this website so others in future do not face with what we recently did. This was an awful experience and We'de like to help others not to do the same mistake that we did.

We are looking for some sort of general website or some online space that we can write a review on this company along with our experience with their service.