Lost music library

Dear community,

I have an Apple Music subscription for me and my family. I moved to New Zealand recently and wanted to change my App Store location so that I could use the local apps (banking for example). Well to change my location I needed to end my Apple Music subscription. I talked to 4 different support people at Apple getting two answers. One was that all my library would be gone due to different license agreements in different countries (or so). The other was that all songs that are available in both countries should be kept in my library (this one made so much more sense to me).

Well the first answer was right. The day my subscription ended, all my songs were gone. Most of them, I would say 95% were from Apple Music subscription. Now before my subscription was canceled I exported my library as a xml and each playlist as a txt file. Feeling very smart I tried to import those files again I got an error message saying that some files couldn't get imported since they couldn't be found.

Of my roughly 1500 songs I would say that at least 90% should be available internationally. And, since I have the playlists as txt file, I tried to manually search for them in Apple Music and I found them.

1. What could be the reason the import doesn't work?
2. Are there scripts that can read text files and manually add the song to my library?
3. I also have an older 'Music Library' file found in a Time Machine backup. It is only 6,5 MB but that should be enough if it only contains the artist/song info. I replaced my current 'Music Library' file with the old one, restarted Apple Music, but nothing happens.

My goal is just to get the songs back. I don't mind so much the playlist organization. I just don't want to manually search for 1500 songs and add them back.

Can someone help please?

Thanks,

Sven