u can play with us, and most of all us are in tonberry japan server.

only we pay subs in euro and not it usd.

since u have us se account, u have to buy us version of game

if u play on ps4 you can try ask here https://forum.lowyat.net/topic/3982847/+260

Yes you can play with all of us BUT you are forever stuck with the US version of the game.

So take your pick.

You're just in free trial (which I guess to mean that you haven't bought it), so I suggest cancel it and make an account on the EU version. All version can play in any language they have and any servers with anyone, but if you check the newbie handbook thread, it shows that paying in GBP (euro version) is cheaper than paying in USD. And from experience, when I had my NA account, they won't accept my RHB debit card, but the eu version does, which makes it easier to subscribe.

For NA, I had to use paypal (paypal conversion cost and paypal tax) to buy ultimapay (or whatever it is called), and use that to buy crysta, and use crysta to top up my subscription. Total cost? 65 ringgit. 65 ringgit back before our beloved Jibby sank ringgit value. It will probably cost more now with the same method (there's probably a different way now, but still, usd is expensive). For EU in may 2017, paying in GBP, direct to square enix because eu version accept RHB debit, 43-44 ringgit.

So.. Yeah, if you haven't buy the NA game, don't. Go make EU version. Your progress in trial account does not worth extra 20 ringgit every month. Trust me on that, I went broke last time I played using NA version

That error usually means your account got blocked from transaction or accouont detail doesnt match the billing address. You might need to contact EU SE customer service to help you.