Thank you for your reply. My apologies for my first arrogant answer.
Don't wanting to use my account bank directly doesn't make me feel paranoid. I'm not a naive teletubby living on a rainbow, I just want to use realistic, minimal
precaution that my bank offers and recommends, that's all. No brain storming needed. There's not erratic dread that motivates me here, just pragmatism. Precaution and Paranoia are / are motivated by completely different things
About '
maybe a bit paranoid 
? ' people (it was just a
futile joke that's not a judgment, they do what they want after all if it hurts nobody I don't care.)
The point is that they probably won't subscribe this way. Why they think this way is their businness I don't care about it. It came to me as a second argument for this 'taxed phone call' idea.
For me, a taxed phone call just seems more praticable and straightforward. This is my point and this is why I posted this and asked if it would be possible. The blabla about 'paranoid persons' is irrelevant here.
I do want to give account information to GameDev, but a special account for web purpose. With assurance and protection. Even if I'm confident in GameDev security as I said, there are hackers on the web, this is a fact.
I lock my entry door by precaution when I get out. There are thieves in the world, this is a fact. Does it make me be paranoid ?
Of course not__________
Please never mind, I just have to wait, and I'll use the existing way in some days or weeks. This was just an ugly lack of patience from me, I must admit it.
Thank you for your time and kindness
Bye
Nico