For Business and Professional Users:
Your history of recommendation requests is visible (i.e. when you made recommendation requests, to whom, if and when the recommendation link was clicked in the request email, and if and when it was written), you can resend requests, and compose and send requests.
If you received an anonymous recommendation and want to see who wrote it, you can correlate the recommendation by looking at the "Fulfilled On" date. This way you can be confident you can associate the recommendation to the service you provided, although publicly they choose to be anonymous.