Ren here from the Shopify Support team, thanks for reaching out with your question.
I recommend reviewing the Marketplace Exchange listing eligibility here. I will also outline this for you below:
You must meet the following requirements before you list your business on Exchange:
Refer to the Exchange terms for all limitations pertaining to Exchange Marketplace.
Be sure to review your email to be sure there hasn't been any correspondence from our Risk, Recovery or Legal teams. After careful review, if you still feel like there isn't a reason why you are being fed the ineligibility message, do let me know.