Guild Wars 2

So I have decided to try and return to playing gw2 and everytime I try to login, the client goes dim and says: Guild Wars 2 has encountered an error; The account name or password you entered is invalid. Please check your information and try again. Then it gives me a link for Recover Account but even after changing my password and submitting tickets to the terrible tech support that uses pre-generated email messages (I know because my name is Daniel and the email that I got the second time had a completely different name). I have confirmed I know my password, it just doesn’t work on the client, so any help would be appreciated. I have posted a picture of what the error looks like.