Did not receive seat reservation tickets (leaving day after tomorrow)

Good evening,

I have ordered my first reservation for TGV and Thalys this saturday through the interrail website.

The payment succeeded, but right thereafter I got an 403 error. After refreshing a couple of Times I got a order confirmation that stated that i would receive the tickets within 30 minutes. It is 1 hour later and i still havent received An email. Also the tickets are not visible in my account.

I have sent a support ticket but they try to reply within 2 days, but i already leave saturday 07:00 in the morning. I am shocked that there is no telephone number available either. As i have only used a german one country pass before, i never had any (reservation) issues before.

Do you have any tips for me how to reach out for help? Thank you in advance,

Kevin