If the Researcher does not show up for the scheduled session they are still obligated to provide you with payment. In this case, here are the steps you can take to ensure payment:
Reach out to the Researcher via the Messages option with the following message while editing the bold text with the appropriate day and time.
"I attended our session on (insert date here) at (insert time here), and per Respondent's terms, I am supposed to be paid for my time. You can see the cancellation policy here: https://help.respondent.io/en/articles/5489238-cancellation-policy
Please mark me as "Attended" for this session and issue my payment."