Ето този линк е по-добър и представлява въведение в дебитните биткойн карти, та в него вапросната компания е на трето място - моя грешка в предишния пост
https://btcmanager.com/articles/an-intr ... bit-cards/
3. E‐Coin
E‐Coin first launched in late 2014 and has since managed to attract a large number of customers in over 170 countries around the world. Once you have read and accepted the terms and conditions, you’ll be directed to the sign‐up page. There is a one‐time set‐up cost and a $1.00 USD monthly maintenance cost, but usage fees are fairly low. To begin with, the transaction limits imposed are strict, but once you’ve verified your identity, you’ll be able to use the card anywhere that accepts Visa. Furthermore, funds are protected by BitGo’s multisig technology and fully insured by XL Group, a global insurance company.
Изясняват се и тихнологиите за осигуряване на картата-
Това е.