My uncle in the UK did the family sharing option for music subscription but still it doesn't work on my side (I'm on South Africa) I joined the invitation but still the apple music doesn't work what might Be the problem or what must I do for it to work?
If you were able to accept hte invitation that means you have your Apple ID set to the UK.
Here's what Apple says officially about using the media stores in another country:
Legal - Apple Media Services - Apple - May 13, 2019 "Our Services are available for your use in your country of residence (“Home Country”)."
and,
"Terms found in this Agreement that relate to Services, Content types, features or functionality not available in your Home Country are not applicable to you unless and until they become available to you. To see the Content types available to you in your Home Country, go to the Services or visit https://support.apple.com/en-us/HT204411. Certain Services and Content available to you in your Home Country may not be available to you when traveling outside of your Home Country."
Family sharing
