I tried to renew my Substance 3D Education license by submitting a new request for a mail with my Adobe ID. But this mail was never received and no, it isn't in my spam folder. I can't resend the mail, because I now get the error: "UniqueID already exists" in the forms input field.
I tried to reach out to the chat support but I was only told that the student license is not free for longer than 12 months and that I should try to apply for the license with a different Adobe ID. But this statement is in direct contradiction to the FAQ, which states: "The free Substance 3D for Students and Teachers license is valid for 12 months. If you are still eligible at the end of the 12 months, you can renew your student license following the same redemption process."
Since other people have closed their post with the above workaround, I felt compelled to open a post myself to get a real solution to this problem.