Clarification on how data works on duplicate SIM

jameskk1

    So I was under the impression that with a duplicate sim, you had a different data bucket to pull from. For example, I am on the SC 10GB plan and I thought the duplicate sim had its own 10GB. But it appears that data used on the duplicate line basically comes out of the main line's data bucket. Not only that but it doesn't appear to be zero rated for music freedoms/Binge On like my SC lines are. All data used on my duplicate line appears to come out of my main 10GB data and nothing appears zero rated. My questions:

     

    1. Is it expected behavior that data used on the duplicate SIM come out of the main line as if they have a single shared data bucket?

     

    2. Is the data on duplicate SIM not zero rated for music freedom and BInge On providers?

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