Hi Reza K, thank you for your feedback, and I'm sorry to hear that your UAG Scout Case for the Apple Watch Ultra 2 / Ultra - 49mm broke after just a week.
The case does come with a 1-year warranty, and we encourage you to claim the warranty to resolve the issue. To do so, please scroll to the bottom of the page, find the 'Customer Service' section, and select 'RMA / Warranty Submission.' Just follow the instructions there, and this should help fix your issue.
If you need any further assistance, feel free to reach out!
Best regards,
Forexengineer.