How do I send testimonial requests after initial set up (i.e. for private clients)?

When we set up our Rover profile we were asked to provide a few email addresses for people to leave testimonials. Since then, I have hosted 2 dogs with another pending, so we are "established" on http://Rover.com now. Through http://Care.com (not recommended!), I was hooked up to a couple with a cat who we sat for four weeks. I would like to invite them to leave a testimonial for us through Rover because we have added cat care (boarding and drop ins) to our services offered. Can anyone tell me where I can find a link to send them for them to leave a Rover testimonial? Is this possible after your profile has been approved and published?