It’s a long wait- very similar to the UK!
I’ll put in a link to a discussion by one of our members- Norway- who mentions the Oslo doctor:
ES and voice problems - General - Living with Eagle
I can’t remember if Norway ever had surgery, but you could try sending them a private message to see how they got on. ( To send a pm, you click o the person’s avatar & the option to send a message will come up)
Good doctors to try are Skull Base surgeons/ Otolaryngologists, or Head and Neck cancer surgeons, as they operate in the same area as the styloids. It might be worth looking for one of those surgeons privately if you can, & tinging to see if they’d treat ES?
Good luck!