Hello, good day and thanks for your question. To add to the above, there are several possibilities or reasons as the system might likely flagged an activity as suspicious and this includes in redeeming or other activities in Microsoft Rewards. These systems are designed to prevent fraud and abuse, and they often trigger when but not limited to:
Multiple accounts use the same device, IP address, or Wi-Fi network.
Phone numbers are reused for multiple accounts.
Multiple redemptions or orders are placed in a short time.
Accounts appear identical/similar or behave or has the same patterns that mimic fraudulent activity.
What can be done to avoid this kind of scenario:
Separate Devices and check connected Networks
- As much as possible, use different devices for your account and for the other member/s of the family.
- Ensure that you are not using a proxy or a VPN service.
Use Unique Phone Numbers
- Treat each Microsoft Rewards account will have a unique, verifiable phone number.
- As much as possible, do not reuse the same number across accounts. If needed, use another number only if it is not in use with another Microsoft Rewards account.
Space Out Your Redemptions
- As much as possible, avoid submitting multiple gift card orders in a single day across accounts to ensure that this will not be tagged as a unusual behavior.
Kindly take note that, if the system flags unusual or different behavior on ones account it will be a violation of the Microsoft Rewards Terms of Service which can get an account to be suspended or be banned. You may submit a ticket via https://rewards.bing.com/support for this to get checked internally by the rewards team and you might need to use a different account (in the event that the form is grayed out from your account) and let the relevant team know on what happened. Response times may vary due to workload or other tasks at hand, but rest assured that they will review your case and let you know on the outcome.