"Fee equals to 1% annual interest rate and applied on client’s any balance amount. The fee will be automatically calculated and accumulated on daily basis, and charged on the last day of current month."
While traditional banks are paying interest (tiny, but still), Mistertango decide to charge customers who hold money there. In my opinion, they already have too big fees - €5 to enable crypto deposits/withdrawals, 0.0025 BTC deposit/withdrawal fee. Personally, I think it's time to switch to Revolut or N26.
https://mistertango.freshdesk.com/support/solutions/articles/16000086281-balance-fee
Why can't they just raise the subscription fee? This just makes their paid plans even less appealing.
Kinda reminds me of:
https://i.imgur.com/8Byk2nM.png
Are you sure? But, only their paid ones are crypto 'friendly' and exchanges are supported or so they say and market.