T-Mobile: Get a 3rd Line Free


T-Mobile offers Existing Single-line or New Customers a 3rd Line for Free (exclusions may apply) via Monthly Bill Credits.

  • New customers: Must activate 2 voice lines. Third voice line will be free.
  • Current customers: If you have at least 2 paid voice lines, you are eligible to get a free voice line on a qualifying plan, including Simple Choice, ONE and Magenta. Exclusions will apply, including discounted plans (military, first responder and 55+) not being eligible. Taxes and fees may apply depending on your existing plan. This may include a SIM or activation fee that may be waived later via chat.

Note: Fastest way to take advantage of this promo is Text 611 from your tmobile phone number, Tell the rep you want to take advantage of Doc 20Q23

Note: Some reps however are still referencing the old promo that ended yesterday and saying you need to add two voice lines on top of your existing two voice lines. This is incorrect. Refer to Doc 20Q23 if they say this or are denied the promo.

Note: 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.

Note: Offer valid for a limited time. Limit 1 offer per account.

Posted: June 26, 2020 at 2:58 pm
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