I also got message last week that they're closing my personal account. It's because that I didn't gave information to their additional KYC. But I don't care about it, because I simply haven't used Mistertango for very long time.
Im not aware on Mistertango services though but if they were a big one then its just a peanut fine.
I think it's quite big money for them. It's not that huge bank which would able to pay million fines. From public information, they even ended last year with a loss, so this fine can hurt them. But it's their own fault, because they were fined not for the first time.