Shoppers using cryptocurrencies like bitcoin and ethereum were hit after Visa locked down some pre-paid cards by blocking a single provider.
BitPay, Cryptopay and Bitwala have all had their cards suspended as of 5 January, meaning they cannot be used to pay for goods on the high street.
Their services are provided through WaveCrest, which is based in Gibraltar.
The pre-paid cards allow users to buy leading cryptocurrencies such as bitcoin and ethereum, transfer them onto the card and use them in the same way as a traditional bank card.