Can I change the underlying fiat currency of my Monolith Visa® Debit Card? March 31, 2020 07:27 Updated No. Once you have selected your card currency you are unable to change it. Related articles Can I pay in a different currency overseas from my Monolith Visa Debit Card? What currency do Monolith Visa® Debit Card refunds arrive in? Which countries are supported by Monolith? Who are Contis? What are the supported token pairs for swaps?