https://www.epo.org/en/node/submitting-deferring-and-revoking-debit-10

Why do I see only the fee group Administrative fees after I have entered my application number?

You have selected the Unitary Patent (UP) procedure. If no fees are currently due for the UP procedure, the fee group Administrative fees will be displayed by default, and it is not possible to pay any other UP fees. Please check you have selected the right procedure.