Jakob If Bunq rejects the card, the transaction should turn up as rejected. Or the support should find on request the rejection in the system. Incorrect configuration causes incompatibility with the POS terminal.
I hope that the situation will improve in the next few weeks.
Most BIN checkers still display the map with a Russian country code. In iTunes, you can now add the card - iTunes uses the country code so for DRM, a "Russian" card could not be added to a German account. And Mastercard's bonus program Priceless now also announces that the card is qualified - which would not be the case if Mastercard recognized the card as Russian. A few days ago, "Priceless" reported another result here.
Indicators that the thing is moving at least.