For postpaid customers, the T-Mobile SIM Starter Kit comes in a 3-in-1 package complete with a Nano SIM card with a Micro and Standard SIM adapter. It can be used directly with an unlocked and compatible GSM device since no SIM card activation is required. The same 3-in-1 SIM Starter Kit is available for T-Mobile prepaid customers. However, customers will still need to activate the SIM once they receive it in their mail.
For a limited time, T-Mobile is offering a $15 instant discount on the prepaid SIM Starter Kit. This price doesn't include tax and applicable shipping charges yet.
As it stands, today is also the first day of the free line promo T-Mobile had previously announced. The promo states that customers with at least two lines of voice service may add an extra line for free after bill credits. This line can be added as an extra voice line, tablet, smartwatch, or SyncUp Drive; depending on the customer's preference. To know more about this free line promo, check this article.