A legal dispute has emerged involving a Monaco-based fintech venture co-founded by Monzo cofounder Jason Bates and Scottish billionaire Jim McColl.

A prominent Ukrainian tech investor has filed a lawsuit against McColl following the launch of their joint banking venture in Monaco. The venture, which aimed to disrupt private banking, now faces uncertainty amid the litigation. Details of the claim remain confidential, but sources suggest disagreements over governance and capital commitments.

The dispute highlights risks in cross-border fintech partnerships between high-profile entrepreneurs. Bates has not commented publicly on the proceedings. The case could impact investor confidence in Monaco's growing fintech hub and set precedents for founder disputes in regulated financial services.