How to get Walking Certified?

Recently, I decided that I wanted to do the dog walking aspect of Rover. However, I recently cleaned out my email and can't find the original email with the details to sign up for the harness class. Further, I have found nothing on the website that points me in the right direction. The only thing I noticed was that, when I edit my services, it says: "We've noticed something incomplete on your profile: Rover Walking Certification: You must complete the certification before offering Rover Now services." I contacted support and they haven't gotten back to me. So, I'm wondering if there's another way to find what I'm looking for?