When we purchased earlier this year. We signed and spread our payments over 6-7 weeks. They knew up front we had purchased
D23 Gold but didn't have the card. Technically, our 10 day period was long past, but they told us once we had the D23 Gold, they would update. Around 30-35 days in, they agreed to use the D23 Gold e-mail. They re-wrote, lowering the price for one of the 3 contracts. Not sure why, but they required us to sign all 3 deeds again. Points for the three deeds were the exact same.
Based on our experience, if Disney hasn't received the full payment, they MAY re-write any contracts. They certainly did in our case. YMMV.