It's money in the bank, don't worry about it. When I first started selling they held my funds for about a month, seemed like forever, but after that all of my payments have been much more timely. I wouldn't stop selling to "teach them a lesson" or anything, because I can assure you nobody is going to notice aside from yourself. Also, I don't think they take their cut until you get paid, but don't quote me on that.
85 Tri-Zinger 60
85 ATC250SX
86 ATC250SX
87 ATC250SX
02 XR650L conversion
84 ATC 480R