The best way to follow-up with your playtesters after a playtest is our "Ask players more questions" feature. It is available for all playtests but not for survey-only studies.
We are considering adding the option to plan remote phone or video interviews with players after their playtests for customers on our Professional and Enterprise Plans. If you're interested in this service, contact us ahead of your next playtest to discuss what's possible.
In-person meetings or focus groups with our players are unfortunately not possible.