Don’t stress out too much (and please don’t open too many support tickets). They are aware of the issue and it will be resolved either by the on-call staff or when someone gets into the office Monday.
Not to worry though because it’s still a couple of weeks until the withdrawals are “processed”, and it will be certainly fixed before then.
I’ve implemented here : http://themeforest.net/item/flathost-responsive-hosting-template-with-whmcs/5043574
With these things it’s best to post examples/screenshots of the item.
Also there may already be too many items of that particular type on the market already, or those particular type of items may not be selling well, or they may not be looking for those type of items right now.
It’s best to take the time to improve the item. Most new authors get hard rejected the first time. I have been hard rejected many times, and the end product I finally release is always much better than the original rejected item.
ps: and start working on a second item right now