I’m very doubtful
This seems more likely… for WU to be charged on deleting pages, you have to suppose that 1. they can access the page 2. they can still run workflows on that page. Seems exceedingly unlikely.
Instead, you’re seeing the label that Bubble provides to say ‘WU was charged for this, but you can’t see it any more because you deleted it’. It wasn’t charged while it was deleted.
Of course, if Bubble has said there’s a bug here (which I don’t think they have) then it’s a pretty bad one.