How can I get a refund for a wrongfully charged basic plan?

Hello, the link provided on “contacting our team” takes me on this page where I see virtual Help Center assistant and some tabs. I actually could not find any “team” or contact (email, live chat) to help me solve the issue.

Please could you provide me a direct contact to some support worker? You can also send it on my email seblis@seznam.cz.

Thank you