Managing player subs money

Collecting subs is one of the most challenging parts of running a club. It would be great if the Match day app was able to manage this. 

Just need a section to set the game fee per player and then if picked it adds up what they owe. If it could link to a payment portal even better and if it were without a transaction fee even more better. Surely the FA can negotiate that?

Things like charges for bookings can automatically be added on as they go through the FA.