How can I reserve bank balance from my Fidor account for trading on bitcoin.de?
You can make a reservation of bank balances for the express trade at the
menu 'my Bitcoin.de' -> 'express trade' -> 'Reservation of bank balance'. All you have to do is specify the amount to reserve and the time duration of the reservation. Subsequentlyn confirm the reservation on the Fidor Bank web interface by entering an SMS-mTAN.
After that you can make express purchases (recognizable by the green Fidor symbol) on the marketplace up to the amount of the bank balance you have reserved.
Continuative Information:
How can I cancel a Fidor bank balance reservation?