Hi! I'm sorry about the problem, the only way to buy from itch is trying a third party service or someone who has access to paypal to buy it to you : (. Unfortunaly I can't sell it directly from other methods due to questions related to my country, I tried but didn't had much success on it
The thing is that kofi offers only two ways for me to receive, and those are paypal and stripe, stripe is not working for brazil and paypal is just the same way as itch. I'm still trying to configure stripe but I'm still waiting then to finish reviewing the documentation
