Are you not going to try one of the workarounds being touted? Such as .......
For those struggling on iPhone with accessing Lighning lane multipass etc from UK
- Turn off Location services in your iphone settings
- Turn on Aeroplane mode
- Keep Wifi on also
- Use a VPN selecting a US location
You also need to change some settings in your My Disney Experience App
- Press the 3 lines bottom right
- scroll down to my profile
- account settings
- country of residence
- Change to United States
- Click Done
After this close down the app, log in again and fingers crossed it should work for you