Buy from a other SEPA country?

Hi,
Is it impossible that a danish account can`t buy BTC from a swedish or other contry seller/s? if the sellers SEPA is setup as fx SW (swedish).
Because I still getting this message:

No matching trading account and this text at both (buy and sell):
You dont`have a trading account with the payment method required for that offer.
You need to setup a trading account with the payment method if you want to take this offer.
Do you want to do this now?

I have also made a SW account and nothing happen… I still got the same message.