求助，若是做host, 现在注册沙发客网站是不是要

今晚我试着注册 https://www.couchsurfing.org/ 这个网站，进去后出来一个页面，说的内容是付25美金，他们会寄一张卡给我，以便证实我是真正的host, 若是想做 host必须要这样付25刀吗？

Welcome! Get verified and get more from Couchsurfing.Verified travelers find hosts more easily.Get faster responses to messages from members who share a trusted connection with you.Join nearly 1 million verified Couchsurfers around the world.What we do to verify youTo begin the verification process, your payment must be approved by our trusted financial partners. Once you pass that check, we send you a card with a unique code to the address you provide. The personalized code confirms this location.ShippingFREETotal$25.00