2 Blocks That allow the ability for automatic payment, since we already have Cards That are linked to A Bank Account this can be a bit simple to implement,
First Block Is like We Can Call it Card Reader Interface or something it work similar to these other interface where you can place a card on it and select between Giving Or Receiving Mode Allowing contraption to pay when they connect with a Card Reader on behalf of the designated player which allow a system gates that block trains only if the train pay ceterin amount then the gate open or a harber closed til certein amount of money is collected etc etc
Second Block is Similar to the depositor But instead of it sending Redstone Signal When Getting payed it Will Deduct from the card when receiving a Redstone signal allowing a system like subscription-based(Evil ngl) where you can put a very long redstone pulser that will deduct money every a redstone pulse and the redstone pulse can be recived from daylight detector or any other custom counter its redstone possibility are endless