RAlfes I am sorry but I don't see any eligible software titles registered under the Adobe ID/e-mail address you used to post to this forum. You can find details to locate your registered serial numbers at Find your serial number quickly. Please be aware that education licenses are not eligible software titles for upgrades due to the significant cost discount offered with the purchase of the software. You can find more details at Education FAQ.
I would recommend contacting our support team directly at Contact Customer Care. Please have any alternate e-mail addresses or phone numbers which may have been utilized to register the eligible Adobe software title.