I registered a domain with yahoo via CCard last year. After a month, I sold that domain to someone else and he got it transferred to his registrar. Few days back, yahoo charged my credit card for the domain renewal. I don't have the domain, nor does yahoo. And I don't remember the yahoo id via which I registered that domain last year. Can someone guide me with a proper email id or support page, where they give replies, so that I can ask for a refund?