I'm not sure, but I would expect it to be for all documents that are required to make a contract effective.
I suggest you send an email right now and not wait any further.
Look at all the documents and see what email address you have to send it to. If you have to send it via certified mail, do ASAP but by tomorrow at the latest.
Let them know you are exercising your right to rescind the contract within the 10 days as required by law.
Then re-do the contract with the correct UY.
https://www.nolo.com/legal-encyclopedia/florida-timeshare-foreclosure-right-cancel-laws.html
Right to Cancel a Timeshare in Florida
If you buy a Florida timeshare, you can cancel the timeshare contract up until midnight of the 10th calendar day following the date you signed the contract or the day on which you received the last of all required documents, whichever occurs later. Under Florida law, this right of cancellation can't be waived. (Fla. Stat. Ann. § 721.10(1)).