You can always request a new or extra card/tag for yourself or for someone else.
Log in at the E-Flux Dashboard;
Go to 'My cards' and scroll all the way down to the bottom. Then hit the '+Request Card or Tag' button;
Is the charge card for another person? Then fill in the information about this person. This person can create their own account via an invitation email. All costs will be charged to the account holder.
Have fun charging!