If you receive an email from ANY company asking you to provide personal information, including security question answers and the like, it's probably phishing - contact the company directly. We will never ask you for this information.

I have a big problem is that because of my Linux Ubuntu computer I can't play anything other than the newer version and I want to play servers, use textures packs, use clients and do many more things and I can't because it tells me error code 0