My card was charged twice by Mctagp (mctagp.com) on the same day. I had to dispute it with my bank. Mctagp (mctagp.com) then froze my account and said I had a negative balance because of the chargeback. They created the problem and then punished me for it.
Pros: Market news feed|Fast deposits|Personal attention
Cons: Spreads widen during volatile periods|Live chat only during business hours