RADWIMPS music not available in Japan

[Muffinzzaaa]

Hi there

So I recently moved to Japan to live having previously lived in New Zealand. About a month after moving to Japan, I have switched over my country settings on my premium subscription to Japan. I had been able to listen to all music up until very recently then. However, I have noticed that most of my favourate RADWIMPS music (Your Name, Weathering with You) has become unplayable in my playlists.

I have compared music availablity with friends that have not changed their Spotify payment countries (Australia and USA) and have found that they still have all RADWIMPS music available. 

This is extremely frustrating as I love RADWIMPS and their music and I would have thought if anything, moving to Japan would have made more Japanese music available.

Any help would be appreciated,

Muffinzzaaa