Login at your user area (
click here)
with the email address you also used upon purchase (even if you have a new email address). If necessary change your user data (e.g. a new e-mail address). (See the lefthand part of image below) Then click on [Download/Upgrade BS.Player]
(see the right of image below). Request a new user-key (see right image below). If you cannot get any further: send a message to BS.Player-team with your purchase details (
click here)
or -alternatively- send a pm to e.g. Ico-man (=BS.Player team member) with your purchase details.
[Needless to say: never reveal your details on the forum itself].