Um, what are you trying to tell me, Mint Mobile?

As Mint Mobile user, I received an email that says the following in the subject line:

Your 3G device will not be supported after 7/1

Umm, okay. Then in the email:

Your Apple iPhone 13 Pro Max has been identified as a 3G compatible device, but it is not compatible with 5G or 4G LTE bandwidths. Therefore, you will need to upgrade your phone to a 5G or 4G LTE compatible device before July 1, 2022.

Huh? You are really saying that iPhone 13 Pro Max are useless.

From Apple.com:

Cellular and Wireless

Model A2483*

  • 5G NR (Bands n1, n2, n3, n5, n7, n8, n12, n20, n25, n28, n29, n30, n38, n40, n41, n48, n66, n71, n77, n78, n79)
  • 5G NR mmWave (Bands n258, n260, n261)
  • FDD-LTE (Bands 1, 2, 3, 4, 5, 7, 8, 11, 12, 13, 14, 17, 18, 19, 20, 21, 25, 26, 28, 29, 30, 32, 66, 71)
  • TD-LTE (Bands 34, 38, 39, 40, 41, 42, 46, 48)
  • CDMA EV-DO Rev. A (800, 1900 MHz)
  • UMTS/HSPA+/DC-HSDPA (850, 900, 1700/2100, 1900, 2100 MHz)
  • GSM/EDGE (850, 900, 1800, 1900 MHz)

Model A2484*

  • 5G NR (Bands n1, n2, n3, n5, n7, n8, n12, n20, n25, n28, n29, n30, n38, n40, n41, n48, n66, n71, n77, n78, n79)
  • 5G NR mmWave (Bands n258, n260, n261)
  • FDD-LTE (Bands 1, 2, 3, 4, 5, 7, 8, 11, 12, 13, 14, 17, 18, 19, 20, 21, 25, 26, 28, 29, 30, 32, 66, 71)
  • TD-LTE (Bands 34, 38, 39, 40, 41, 42, 46, 48)
  • CDMA EV-DO Rev. A (800, 1900 MHz)
  • UMTS/HSPA+/DC-HSDPA (850, 900, 1700/2100, 1900, 2100 MHz) 
  • GSM/EDGE (850, 900, 1800, 1900 MHz)

All models

  • 5G (sub‑6 GHz and mmWave) with 4×4 MIMO7
  • Gigabit LTE with 4×4 MIMO and LAA7
  • Wi‑Fi 6 (802.11ax) with 2×2 MIMO
  • Bluetooth 5.0 wireless technology
  • Ultra Wideband chip for spatial awareness8
  • NFC with reader mode
  • Express Cards with power reserve

Who did your research?