If one of my reviewed providers has changed her website, how do I change it in the review?

Are you trying to change the website on a review that is already posted or on a new review?

If you are submitting a new review use the new website in your review and submit a problem report on the profile letting admin know of the change.

the lady will do that.  While you could probably do that via report problem, I would leave that up to the provider... send her an email, call her, whatever.  Reason - that involves updating the entire profile, and there may be a reason she has not already done that herself....