(FILES) In this file photo taken on October 07, 2021 Gazprom logo is seen during the International Gas Forum, at the Expoforum Convention and Exhibition Centre in Saint Petersburg. - Russia's energy giant Gazprom said on April 27, 2022 it had stopped all gas supplies to Poland and highly dependent Bulgaria after not receiving payment in rubles from the two EU members. President Vladimir Putin last month said Russia will only accept payment for deliveries in its national currency, with buyers required to set up ruble accounts or have their taps turned off. (Photo by Olga MALTSEVA / AFP)