I can only second Pina's opinion. Jackpot Factory has excellent service and fast cashouts and FirstWeb is no exception. 48 hours seems rather long. How is it sitting at the site, still as a Reverse Withdrawal or is it flushed? Normally, they flush it immediately after 24 hour. So, your problem is definitely worth a call.
Btw, in their withdrawals, at neteller or wherever, they will first show every deposit that you make since your last withdrawal and then your net win. So, if you deposited $100 3x without any withdrawal and then withdraw a win of $1,000 the transaction at neteller will show as 100, 100, 100, 700. Sometimes not all of these will be processed at the same time. If you receive only a partial payment, don't worry, you'll get the rest in the next batch of payments they process. They process 3 times a day.