Dear Community member, thank you, i have managed to purchase an item on the App store.
As you indicated, the billing information needed to be changed such that bancardcard detail and region/ address where it was originally issued, need to match, regardless of where one is located or purchasing.
Another community member, Linmos kindly gave me the menu directions
I seem to recall at a Switch Apple dealer we needed to change the region on our i-phone to acquire a free App in Malaysia, however i’m unsure if related, besides which the id update and support info is sorted accross all devices.
I feel heartened and am thoroughly enjoying my Mac experience.
Much appreciated.
Arron