Unfortunately, we will not be able to provide you a refund/page-credits if you made a mistake.
Here are some common scenarios we have seen for quota refund requests
If there are any issues with the website that you are trying to scrape
Mistaken or accidental crawling (this also includes scenarios such as "I was unaware of page credits", "I accidentally pressed the start button")
Providing unsupported URLs or providing the same or duplicate URLs that have already been crawled
Duplicate data on the website
No results on the website for the search queries/URLs