This is a hard question as it depends if you’ve received what you tipped for & with you stating that the model refunded the tokens back to you, there’s not much that can be done.
But if you still feel that you wish to complain about the model, you can use the Report Abuse link above the webcam, but as you have been banned from the models room, you would need to email support@chaturbate.com with ALL the details.
Do not forget to include transactions and refunds.