Hello Maco20047, To the best of my knowledge, when the server change the donation medals to the new automated system, all users that had them were cleared. In order for them to be re-awarded to you, you will need to log in, and wait somewhere between 0-10 minutes for it to register, then you will have all your donation medals back. I did not get an alert when mine we re added, however if you check any of your posts, or refresh the medals on your profile, they will appear when they are awarded. Source for this statement is based on this news post.
Ugh...guess I will be without donation medals for another week. -_- EDIT: I will have a friend log in for me