28GB per line or per plan?

gdefender

    I have the T-Mobile One Plus Promo plan. We have 6 lines on the account. Per T-Mobile's terms, customers who use more than 28GB in a month may get deprioritized.  I read the information at the link below, but it's not clear to me if the 28GB is per line, or the total data usage for all lines on the plan. I understand it to mean 28GB per line, but I'm wondering if anyone has experience with this to confirm it.

     

    Company Information | T-Mobile’s Broadband Internet Access Services

     

    On a related note, 10GB of 4G tethering is included. Again, is that 10GB per line or 10GB total for all devices on the plan?

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