An Update...
I made another payment on Monday and would you believe it posted within 24 Hours like the old times. I can see they have a new system that if it's a large payment, it will be held for 8 days before it is entered into the system and be available.
So the end to this story is make small payments, more often and they will not place a hold on them. Makes more work for both parties but it's sure nice not to have the money not be available and having them place the same authorization against the card.
I still don't like the way they do business so I'm looking for another card to switch to. Does anyone have a better card deal out there?