This is reported by Bloomberg. The confusion comes after Russia cut off gas sales to Poland and Bulgaria, which refused to pay in rubles. At the same time, four European companies went ahead and made payments in rubles, although it’s not clear whether they were from EU countries. Others are prepared to open ruble accounts.
The countries that have appealed are those that have chosen not to comply with the Kremlin's conditions and the essence of their demands is to close the loopholes in the sanctions regime for others.