Just wanted to add in another data point. I have been playing GD-MP game for about 2 months now too just like thehawk75. I have been doing about $2K to $4K of MP at a time. 50% of the time I have to call in and open a ticket number to remove the temporary hold from the MP, which has been removed in about 12 hours 90% of the time. I was shut off from GD cards after loading about $15K for the same reasons described by the OP. I closed my accounts and got a check in mail for the balance which were less than $100 each.
GD - Moneypak Loss Prevention: 866.871.2415
LP can remove blocks and get things moving along much faster than the front line CSR.