Can‘t use play store pay

Hi! I’m a user from China. I haven’t good english so i used google translate.
I found your app in navidrome’s wiki. It’s really good, I love it.
But I’m in China and I can’t pay in google store.
I see another user pay by credit card, but i don’t have any credit card because i’m a student.
Could you add other payment methods?

There’s many post here explaining why I can’t to not be banned from Google Play Store.
What I offer usually is infinite trials via a Ko-fi (Paypal) donation, but without a Credit Card I doubt you can do that either.