Please read this post for a full explanation as to how this works and note you need to set up a FaceBook Page for your business if you do not already have one.
Using the Starfish Reviews and Rich Plugins Facebook Reviews plugins - I will set up the full process and provide you with the link you will give to the clients and customers you would like to provide you with a review.
I will require administrator login credentials for your WordPress site and you will need to authorise the connection to your Facebook account. Full instructions provided.
If you are unsure about anything let me know below
Using the free version of the 2 required plugins
Includes first year licence for premium versions of the 2 plugins
Secure payment is handled by PayPal