The website was affected by a malware that was redirecting our users to spammy websites. We tried to solve our self, restoring a database backup, but every two/three days the problem was coming back.
The guys at WP-OK has been super efficient and very professional, even if I send my request in the middle of August, and they discovered that the problem was caused by a malware that was adding a script in the database. The solve the problem and also installed two new plugins, monitored the site for a week to make sure the problem wouldn't come back.
Great value for money: you pay for expertise, and you get results. Overall, highly recommended!