I registered and created an account via Bitcoin-Trader. My experience is as follows:
One you create an account in the web app, it then requires you to open a Contract-for-difference or spread betting trading account with one of its nominated platforms.
It is not possible to link the app to any existing trading platform you may have so you are forced to open with a new / unknown trading platform case.
Then once you start to set up the account and a customer service rep of the platform will phone you to help set the account up and make the deposit - all very friendly and helpful. - And then you'll be told an account manager will call you to help you on your way.
The account manager will call many times telling you that the robot (Bitcoin-Trader) is useless (which it is actually) and asking you to deposit much much more and also insisting that the only way you can make decent money is to give him total discretionary management to operate the account on your behalf. I was asked to deposit $20k and just held out: - eventually I agreed to give him emailed authority to manage my £300 balance at his discretion just to see what happened.