Thanks for posting in the Community, @dseichbauer. I can get you pointed in the right direction for refund requests.
While this is a public forum, the Customer Support team can pull up your information in a secure environment and review the billing. Here's how you can reach them:
Should you not see the option for Get a callback, you can toggle it by entering Support in How can we help?.
The following is a brief video to serve as an example:
Please feel free to let me know if you should have any questions or need further assistance. Take care.