Superlearning?
I bought a load of stuff from Superlearning a while back and found it to be a total waste of money! The only benefit I got was to satisfy my curiosity. Not only that, but when I tried to contact them about a problem I had it took me several e-mails to get a response. When I finally did get a response, it was decidedly abrupt and evasive. They must get a lot of complaints. My advice - do not deal with them!