the prompts we gave to get a video generated resulted in a video that wasn't relevant and burned through 800 credits. how do we get these credits back.

We gave the AI generator very specific instructions on AI video generation for 20 seconds that was worth 800 credits. we provided a video and photos, and only 7.5 seconds out of the 20 seconds were relevant information where 6 seconds of that was already pregenerated for the generator.  I would like the 800 credits to be credited back so I can try again.