I've gone through your account and I'm not seeing where anyone told you that your withdrawal had been approved. I have your live chat and this was never told to you. I'm thinking you may have misunderstood?
In any event, the reason that things have stalled is because you built your withdrawal using your Weekly Cashback and you've not completed the playthrough. In order to have a successful withdrawal, you would need to wager a total of $739 and you've only wagered $149.75. The funds still remain in your account, so you can continue to try to meet the wager requirements.
I should make one point clear with this--the Weekly Cashback carries a maximum cash out amount of $100.
The Weekly Cashback bonus comes with a 30 times playthrough requirement for Slots, Keno, Scratch Cards, Bingo; a 60 times playthrough requirement for Table Games and Video Poker. And excludes play in Baccarat, Craps, Roulette, Pontoon 21, Pai Gow Poker, Sic Bo, War, and/or 'Shooting games' -e.g. Fish Catch.
The Weekly Cashback is credited each Monday 00.01EST for all players with no pending withdrawals, no approved withdrawals over previous 7 days and a balance under $10.
The Weekly Cashback is calculated on all deposits (minimum $50) which were made over the previous 7 days.
Unless specifically stated otherwise, the Weekly Cashback bonus comes with 2 times maximum allowed withdrawal (minimum $100).
Weekly Cashback will be credited even if you have an existing balance. If so, the Weekly Cashback will be treated as winnings and any other current bonus rules applicable in your account will still apply.
I hope this clears things up...
All the best,