fintastique,
It's quite confusing indeed. I prefer when we can keep a default payment method already preset, or when it's the first thing we reply.
I think it was in my latest DT payment that I also faced this doubt, if I remember it right we have to say how much we want to withdraw before choosing the method, so I was unsure if once I clicked on "request" button I would be ask the method or not.
Regards,
Adelaide