We'd love to assist with your My Verizon account today. It's important to set the proper data limits on your devices.
To clarify are you the Account Owner or Manager on the account? Has the other line on the account registered their line as the primary My verizon account?
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If my response answered your question please click the "Correct Answer" button under my response. This ensures others can benefit from our conversation. Thanks in advance for your help with this!!