“By the way, as far as I know the first payment is made 45 days after the submission is on the marketplace” - .
Just a point of clarification so it doesn’t take you by surprise later: your first payment will actually come within 45 days of the end of a sales period. So if your pack goes up on 6/1/2015, you might not get paid (for sales in the month of June) until 08/14/2015 (although my average has been around 35 or so days after a payment period).
Also, I’ve never had any problems in my dealings with Epic staff. They’re always prompt and courteous in their replies, and have always been helpful. Except for that guy; he’s a jerk (just kidding!).