@msporttickets In reply to that the new links did not solve the full issue:
"We are aware of the issues regarding ticket links and are working with the circuit on a solution. As soon as we have an answer we will be in touch."
@msporttickets Just received an email. One step closer. I have now 3 tickets for my companion and 1 ticket for my self (sunday). The Friday and Saturday ticket are still taken by some other guy. They ask to reply to the e-mail if you still encounter issues.