So thankful I found this website! We (stupidly) bought a bluegreen timeshare this past Saturday (10/30/2021), and by midnight that night were googling and regretting our decision. We ended up following OPs template and typing up a letter of rescission which we got notarized and sent out on Monday (11/1/2021) via priority mail express (i.e. overnighted) with signature required and return receipt. It is now Thursday (11/3/2021), and my tracking information says it's still in transit and hasn't even made it to Florida yet. I know all the previous posts says it just needs to be postmarked within the 15 day rescission period, and I have my USPS receipt, but I'm still freaking out that its going to get lost in the mail and not actually make it there. I also feel like I should call them to notify them of the incoming letter, but I also know in the past, you've said not to call.... Any advice or reassurance would be greatly appreciated!