TracFone Phones with $40 Free Airtime as low as $19.99

Looks like TracFone is running some really steep discounts on 3-4 of their handsets for Prime Day.
TracFone Samsung Galaxy J7 Sky Pro 4G LTE Prepaid Smartphone with Amazon Exclusive Free $40 Airtime Bundle – MSRP: $149.99, Sale Price: $99.99
https://www.amazon.com/dp/B0725S47VQ
TracFone ZTE ZFive2 4G LTE Prepaid Smartphone – MSRP: $79.99, Sale Price: $19.99
https://www.amazon.com/dp/B07CQ858Y3
TracFone Alcatel Pop Star 4G LTE Prepaid Smartphone – White Box Packaging – $9.99
https://www.amazon.com/dp/B07FK64SRP
Total Wireless LG Rebel 3 4G LTE Prepaid Smartphone – MSRP: $49.99, Sale Price: $19.99
https://www.amazon.com/dp/B077Y4KM2B
Net10 Samsung Galaxy J3 Luna Pro 4G LTE Prepaid Smartphone with Free 40 Airtime Bundle – MSRP: $99.99, Sale Price: $49.99
https://www.amazon.com/dp/B07CR9KLR9
Net10 LG Rebel 3 4G LTE Prepaid Smartphone with Free 40 Airtime Bundle – MSRP: $69.99, Sale Price: $19.99
https://www.amazon.com/dp/B07CQCXGFH
https://www.amazon.com/DP/B071FBVP5J