I really wish more sites had an escrow option. This makes our jobs (as models) easier when we need to cancel, and makes it safer for customers to buy custom content. I've shamefully had to delay many videos on sites where escrow was not an option, where I was able to cancel the custom at the click of a button elsewhere, and I get too embarrassed to message the non-escrow custom buyers about it. Not saying it's right or excusing the behaviour, just suggesting that the same could've happened here.
She said she would do it within 24h and you haven't heard anything about it. You have a right to ask about it. I recommend not jumping the gun, but say you want the communication and would appreciate a response on when she can actually do it.
Edit:
Also, here's some example sites you can cancel/get refunds on (I know because I've had to do it):
- Pornhub
- APClips
Did you tip via onlyfans? If she isn't able to deliver, ask her to block you and unblock you. The blocking refunds your money, AFAIK as long as long as its within a 30 day period of you actually sending the money. I'm unsure if OF likes it though, but I've done it once without issue for someone who mistakenly had their $10 renewal switched on and said they couldn't afford it.