Hi there, sorry about Hostelworld, unfortunately many of the sites with a US connection take down the ability to support Cuba because of the US sanctions. I’m in the process of removing Hostelworld from the site because of this. For Homestay, I’m checking in with Homestay directly to see if there a way to pay through the platform, but until then, its pay the owner when you arrive. Many people take a lot of cash to Cuba, just make sure you lock it away in a portable travel safe. I’ll be back soonest with an answer. Sarah