Using the "contact us" button on the bottom of the page, and ask them to link your review profile to your username. It should be as simple as that. Then whenever you post, there should be a link to your reviews under your username. Linking will also give you "free limited provider VIP," which allows you to read your own reviews and acess the PM system.
You should also check your profile for accuracy and file problem reports to correct it.
Good Luck

They can be faster and have been with me, but contact them after that time range.