Thesims3.com um...invalid information on username/password

 I went online to thesims3.com. Bought some of the boxed items and so fourth. Downloaded a bunch. Than it had some sort of download error which it said to read the logs but I've no idea what it was tlakin about. Than I decided to re-boot the computer to see if it was just something on my end. I'd downloaded idk a bunch of stuff, even bought some points to buy more stuff but than suddenly it won't let me access anything from the store. i cannot check out/download previously purchased content. I can't buy more stuff which I would have. When it asks for e-mail/pass I enter the information that is correct yet it states that the information I've given is wrong. I even changed my password figuring that maybe, just maybe, I'd accidenly done something wrong there. NOPE. Didn't help at all.