I went to my GYN yesterday for a check-up - as I was checking out the receptionist said I didn't owe anything because I had a credit - I asked her how that happened as I hadn't been there in two years. She said she didn't know (very short - rude ) - so I asked her how much the credit was - she said, "$734.15!!!!!! I told her there must be a mistake - she informed me I needed to call insurance/billing - but would need to call as they don't speak to walk-ins......so I went outside and called from my cell phone - they looked it up and YES - it was from when I had ds in 2000 - they switched computer systems right about the same time - I apparently paid per their plan, but then insurance kicked in more than expected after he was born and the credit got lost - she said that they had found several like this from that month/year just recently - so they're sending me a check - 2.5 weeks before WDW!!!