I found that Tesla FSD can be refundable in 48 hours. Under the conditions here:
https://www.tesla.com/en_AU/support/upgrades#upgrade-refunds
Yes. For upgrades purchased from the Tesla app, you can request a refund from the Tesla app within 48 hours of purchase. All refund conditions are available in your Tesla app. If an upgrade was purchased in a Service Centre, contact your local Service Centre.
Does this means I can buy, then refund in an endless loop to take advantage of free FSD? Like when I get bored, just refund. Is there a limit on the number of times you can seek refund?
I’m also wondering what if I bought the FSD within 48 hours window. Then decided to take delivery on a new Tesla, and transfer the FSD, but seek refund on FSD on the old car. What will happen?