Photo edits and video tours are charged differently, and the difference matters most when something fails.
Image Studio edits are charged only after they succeed. Nothing leaves your balance until the edit lands, so an edit that fails costs you nothing at all.
Video tours are charged per scene, as each scene is submitted, which is why your balance drops before the tour finishes rendering. If a scene fails, its credits are held rather than returned right away, and that held amount pays for one free retry of that scene. So a failed scene is not a lost credit, it is a retry you have already paid for.
The credits come back to your balance automatically in two cases: the free retry also fails, or you leave the tour without using the retry. Either way the return shows up in your Credit Activity. This is worth knowing because right after a first failure your balance will look short, and the retry is what that amount is reserved for.
If a job succeeded but the result was not usable, reach us through the contact form. We will look at the render, and when the cause is on our side we return the credits directly to your balance, where it appears in your Credit Activity.
Credits are not returned for changes you chose to make: regenerating a scene, swapping a sky for a different style, or upscaling to a higher resolution. Those are intentional usage.