How to change my App Store region without terminating Apple Music subscription?

First of all, hello, I am a user with an apple music subscription. But I moved from the country I was living in to Canada. And for this reason, I need to change my Apple Store location to access many applications, and for this I need to terminate my Apple Music validity. I was living in a different country before and had a similar problem and the problem was fixed by customer service. But this time customer services did not help me and when I explained my problem, they said they could not do it and ended the call against my will by wishing me a good day. Because of this problem, I cannot access applications such as banks etc. and they say that my annual subscription must be terminated. How can I solve this problem, and I have never encountered such rude customer service.

[Re-Titled By Moderator]