I complained about this before.
You do the Instacash, it hits your bank the next day. But they have a week long hold on all your withdrawals, the system blows.
You have to withdraw double to withdraw what you want to take out, if that makes sense.
I'd suggest to deposit into books that don't charge for instacash, like Wsex, wwts, jamaica, bet 19 etc. Then go from there.