Within the hour of learning it was canceled I contacted WDW reservations and asked to apply my vacation balance to my package balance and was told their system was down. I called right away because I had a problem with the vacation account from the initial set-up. The first deduction from my checking account showed up on the bank's end, but not in the Disney vacation system. Long story short, it took nearly two weeks and several phone calls with a Manager to correct the issue.
Today when I learned today they were canceling the service, I immediately became nervous having $2500 wrapped up in their system. I called about an hour ago. The reservation system is up and running, but the Vacation Account system is down for "maintenance." They wanted to know the balance I wanted to apply, but I couldn't give them the exact amount because the system is down. When I explained it was around $2500, the rep provided me the exact figure and said it was applied to my reservation. I waited for a confirmation email ... and waited ... Finally, I received an email that read as if I had just booked the reservation. No mention of the $2500 funds applied. Oh, boy!
If you have a substantial amount wrapped up in the vacation account I suggest you deal with it now instead of later. Their system is wonky, to say the least ...