In January 2018, Xapo, a major cryptocurrency vault service provider, was forced to shut down its crypto debit card system as per the request of Visa.
source https://www.google.com/url?rct=j&sa=t&url=https://www.ccn.com/groestlecoin-crypto-asset-surged-200-backing-from-mastercard&ct=ga&cd=CAIyGmM2Nzk3ODA2ZWViNjVjODI6Y29tOmVuOlVT&usg=AFQjCNFhPbNJjcTsncOcMhOV4kvbtt-yVw
