T-Mobile iPhone 12 or iPhone 13 BOGO for all 2+ line customers up to $800. New line required.

Didn't see anyone post this yet. Shows up under iPhone 12 mini and iPhone 13 mini but seems to apply to all iPhone 12 and 13 models for all 2+ line customers including those without Magenta Max but new line required and the up to $800 is via bill credits over 30 months.

https://www.t-mobile.com/cell-phones

How to buy one, get one $800 off:
Purchase a new iPhone 13 Pro, iPhone 13 Pro Max, iPhone 13, iPhone 13 mini, iPhone 12 Pro, iPhone 12 Pro Max, iPhone 12 or iPhone 12 mini on a monthly payment plan and pay applicable sales tax on the pre-credit price at time of purchase.
Purchase a second new iPhone 13 Pro, iPhone 13 Pro Max, iPhone 13, iPhone 13 mini, iPhone 12 Pro, iPhone 12 Pro Max, iPhone 12 or iPhone 12 mini of equal or lesser value on a monthly payment plan and pay the applicable sales tax on the pre-credit price at time of purchase.
Already a T-Mobile Customer: Add a new line of service on an eligible plan.
New to T-Mobile: Activate 2+ new lines of service on an eligible plan.
Receive up to $800 back via 30 monthly bill credits on the lower-priced device.
If you cancel before 30 credits, credits stop & balance on required finance agreement may be due; contact us.For well-qualified customers.

Contact us before cancelling service to continue remaining bill credits, or credits stop & balance on required finance agreements for all devices is due (e.g. $699.99 - iPhone 13 mini 128GB / $799.99 – iPhone 13 mini 256GB & iPhone 13 128GB / $899.99 – iPhone 13 256GB / $999.99 –iPhone 13 mini 512GB / $1,099.99 – iPhone 13 Pro Max 128GB / $1,199.99 – iPhone 13 Pro Max 256GB / $999.99 – iPhone 13 Pro 128GB / $1,099.99 – iPhone 13 Pro 256GB & iPhone 13 512GB / $1,299.99 – iPhone 13 Pro 512GB / $1,399.99 – iPhone 13 Pro Max 512GB / $1,499.99 – iPhone 13 Pro 1TB / $1,599.99 - iPhone 13 Pro Max 1TB / $629.99 – iPhone 12 mini 64GB / $679.99 – iPhone 12 mini 128GB / $729.99 – iPhone 12 64GB / $779.99 – iPhone 12 128GB & 12 mini 256GB / $879.99 – iPhone 12 256GB / $899.99 – iPhone 12 Pro 128GB / $999.99 – iPhone 12 Pro Max 128GB). Tax on pre-credit price due at sale. Limited-time offer; subject to change. Qualifying credit, service, & and new line (2+ total) required. If you have cancelled lines in past 90 days, you may need to reactivate them first. In stores & on customer service calls, $30 assisted or upgrade support charge may be required. Up to $800 via bill credits on lower-priced device; must be active and in good standing to receive credits; allow 2 bill cycles. Max 4 discounted devices/account. May not be combinable with some offers or discounts.