You have to wait a little bit and continue refreshing the website tab from times to times... You don't have to do a few rolls to get them or anything else. Just access the website once a day, and keep refreshing it (once every hour must be enough).
The only requirement for receiving WOF spins is that you hold minimum of 2500 FUN tokens. You don't have to visit the website every day.
Even if you don't visit the website for months, WOF spins are accumulated and you can play all them whenever you want.