Pokefarmer kicked me off told me go to buddyauth close session ... I don't know password or username it's been year or more since I signed on buddyauth. But it's fine I got back on and I'm buying many more pokefarmer soon ....
Try to create an account with the email they sent you the key in. I thought I had a username, but it turns out I did not, once you create an account with the correct email, you can access it all.