I've tried contacting them regarding customer service issues because they're response to any customer service request is linked to a zendesk customer service organization but my login doesn't work there. I tried even to reset my zendesk login but I receive no email to reset it. For an organization that's making so much money I would think they can afford live staff to answer calls.
As far as withdrawing funds which I see a lot of comments on I have had any problems there. They just refund my Paypal account and that has worked well for me.
The reason for my low scores is because that you can't talk to anyone regarding issues and their password reset on their customer service site doesn't work.