VISA絡みの問題だけど英語ソースだと。
The biggest problem when issuing cards with crypto-currencies is connected with intermediaries between VISA and the payment system connected with crypto-currencies.
The gap between VISA and WaveCrest caused problems with the TenX and Wirex cards and sent out projects to find other intermediaries.
らしいがワイの英語力では技術について分からんから意味不明。
TenXとWirexが問題あるみたいに書いているけど分からん