Do you have a link for this claim? All I get when googling "russia cut off from swift" is a bunch of rt/zerohedge/tass stuff (wtf is TruNews?), followed by some clear denials in ft/bloomberg. Is there more to this than just the Russian government saying stuff?
13. Recalls that the restrictive measures taken by the EU are directly linked to the Russian Federation’s violation of international law with the illegal annexation of Crimea and the destabilisation of Ukraine, while the trade measures taken by the Russian Federation, including those against Ukraine and other Eastern Partnership countries which have recently concluded Association Agreements with the EU, are unjustified; calls for the EU to consider excluding Russia from civil nuclear cooperation and the Swift system;
http://www.europarl.europa.eu/sides/getDoc.do?pubRef=-//EP//...
Still funny that media did not report it at the time although this was made public.
According to Bloomberg, the U.K. plans to propose blocking Russia from the SWIFT banking transaction system, a move analysts say would effectively cut off Russian businesses from the rest of the world's financial system. U.K. Prime Minister David Cameron will put forward the proposal during a meeting with E.U. leaders in Brussels on Saturday.
https://www.bloomberg.com/news/articles/2014-08-29/u-k-wants...
[1] https://www.cnbc.com/2018/05/23/russias-central-bank-governo...