https://community.verizonwireless.com/thread/815360

There are many forum posts on your issue. You were not baited and switched.

Each time you say you did not pay full price for the devices you are telling folks why you were losing unlimited data.

At one time signing a contract for 1-2 years with a subsidized phone did not remove unlimited data. However for a few years now ANY TIME YOU GET A SUBSIDIZED DEVICE you lose unlimited data

The exceptions being paying full price or using Verizon's Device Payment Plan.

Again Good Luck