If your Robux was spent without your authorization, here's what you can do:
Contact Roblox support as soon as possible to inform them about your hacked account6. It is best to do it within the first 48 hours6. While you officially get 30 days to report a hacked account, the support team will take some time to analyze the situation, and the hacker can continue using your account6.
To potentially recover your Robux, compile evidence of the unauthorized transactions4. Screenshots of your transaction history and any other relevant information can help support your claim4.
According to some users, Roblox may offer a one-time rollback to restore your account4.
When contacting support, explain that your Robux was spent without your permission4.
If you can still access your account, change your password immediately to prevent further unauthorized access2. Also, make sure to check your email for a password reset email from Roblox2.
To keep your Roblox account safe, enable features like two-step verification6.
Even with these measures, there's no guarantee of a refund4. Some users have reported success in getting their Robux back, while others have not4.