[Blind-sysadmins] domain registrar won't contact me

Hello, I've got two domains, more than that, but two for this message, hosted at adotname.com they are not responding to my support contact requests. I am wondering what to do? Secondary question, if I have to move these two domains and I might, what are recommendations? I'm also needing to change billing, and contact information for these domains so maybe a new registrar would be best. Thanks. Dave.