Thank you for the reply.
I did receive that email and I responded to it. I submitted all the requested documents (government-issued photo ID and proof of address) and completed the questionnaire about the apps I distribute. Developer Support confirmed in writing on 28 May that my documents had been received and escalated to the responsible team, with case number 102894213257.
Since that confirmation I have had no further contact from anyone. I asked for a status update on 10 June and received no reply. It is now 21 July — nearly two months of silence, and I still have no way to accept the updated License Agreement or to update my live app.
I have contacted Developer Support repeatedly throughout this period, which is why I posted here. Is there anything else I can do from my side, or any way to get the case looked at again?