I paid for a to do ist premium. However, I think I have no access to this kind of account.
My email is firstname.lastname@example.org.
You are Premium on our end, please sign out of all devices/locations and back in again. You should then see the changes.
I did you said, but did not make changes. I'm like as try ususal...
Are you sure you are signing into the correct account? If you signed in with Google, it's possible it created another account.
Also, what is the reason you believe you do not have Premium, what are you trying to accomplish?