Dear jennifer drocco
Thank you for posting in the Microsoft community.
Microsoft cashback has higher requirements on the user's system environment because it involves account cashback.
Therefore, we suggest you to check the following contents step by step.
- Use a clean network environment.
Please do not use VPN proxy type network.
You can press WIN+R and type CONTROL>Uninstall
Program>Check if there is a third-party VPN proxy network such as Nord VPN, Express VPN, etc. This will cause the system to detect abnormalities in your current network environment, and thus unable to send cashback requests.
- Use a different browser.
You can try to use EDGE's privacy mode to create a cashback request.
Download EDGE Beta version to isolate some environmental abnormalities caused by EDGE browser.
Become a Microsoft Edge Insider | Microsoft Edge
Best Wish
Shawn.Z-MSFT | Microsoft Community Support Specialist