English language project. Development and SEO Optimization

Development and full SEO optimization of the project. Sadly the customer has already defrauded our work (site), and rewrite the scripts to others. We were shocked when we saw that there were two SEO plugins on the site and 2 title and 2 description on each page)))
Additionally, SEO experts from Canada have written one phrase and duplicated it both in descriptione and in titile and on all pages.
Very offensive...