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FREE 3rd Line for New & Existing T-Mobile Customers

For a limited time, T-Mobile is offering an additional 3rd line for FREE via monthly bill credits for existing single-line or new customers. Qualifying credit and Essentials, Magenta or Magenta Plus plan required. Credits may take up to 2 bill cycles; credits will stop if you cancel any lines. Limit 1 offer per account. New customers will need to activate 2 voice lines to get the 3rd free.


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