Hi all,
I am sorry if this question has been asked before, can't find any similar topics here.
So here is my issue, currently I am living in South Korea and using Korean banks cards for my purchases.
But, whenever I try to buy games using Korean bank issued cards, GoG shows an error can't proceed.
Any of you facing similar issue?

try making a paypal account and making purchases with it.

Yes, but reversed.

I have a Bugs account, and would like to buy some Kpop music, but they accept only Korean credit cards, so I can't buy anything.

It seems that Korean banking system is somehow its own world, and what you can use in Korea doesn't necessarily work elsewhere and vice versa.

If you can somehow make a payment on GOG, then everything else should work.
There are not too many regional restrictions otherwise, except some legally required censorship in some countries.