This is not a document that we report or generate. Thinkific is a Canadian business, so a 1099 is not applicable.
1099s are for documenting salaries/wages and similar payments made to independent contractors (individuals) in the US. It is not for purchases from corporations (which is what your Thinkific subscription is), so there would be no filing requirement on your end for your Thinkific payments to the best of our knowledge.
Please note that we are not tax experts. We always recommend reaching out to an expert for any tax related questions that apply to your business.