That wasn’t the scenario though, I picked the scenario because it’s similar to my use of cryptocurrencies: where your credit card is in a different currency to

That wasn’t the scenario though, I picked the scenario because it’s similar to my use of cryptocurrencies: where your credit card is in a different currency to your purchase, while the card issuer does the conversion behind the scenes. Just like is happening when I buy something with a Binance card. So what currency a seller must accept is unrelated.