Help! My inventory got wiped

Hi folks, my entire inventory got wiped just from one day onto the other.
Just logged in and norging listed anymore. I tried logging out and back in, same thing.
Also waited for 24h, but same thing.

Since it (to my knowledge) impossible with one key stroke to delete all cards, I am positive it’s not something that i could have done by accident.

Has anyone else been in this situation?
Im kot a premium member, but I logged a support ticket and waiting now.
Is there anything else I can do ?

Thx