[French Crypto Savings Platform Bitstack Completes $15 Million Series A Funding Round, Led by 13books Capital] Foresight News reports that the French crypto savings platform Bitstack has completed a $15 million Series A funding round, led by 13books Capital, with participation from AG2R LA MONDIALE, Plug and Play Ventures, Serena, Stillmark, and Y Combinator. The funds raised will be used to accelerate the launch of the VISA debit card Stackback rewards and euro accounts (including French IBAN). Card testing will begin on January 13, 2026, for 5,000 waitlisted users.