T-Mobile Bait and Switch scam on December 2021 "Free" upgrade to IPhone13 + airpods

We too have been a victim of the bait and switch.  It all started in Nov. 2021 when Sprint was pushing us to upgrade a phone that was still 3G.  We ended up migrating our lines to T-Mobile after 17 years with Sprint.  We traded 2 iPhone XR's and an iPhone7.  We paid the taxes and another $200 to make up for the iPhone7 being of lesser trade in value.  6 months later we are still trying to resolve the bill.  They keep telling us that the promo we were given wasn't available - even though the in-store mgr confirmed it.  They actually owe us a credit, but have suspended our business lines twice because of billing errors on their end.   Long story short - let's start a class action lawsuit.  I started one before against Gateway computers (successfully) and am ready to do it again.  These companies act with impunity and need to realize that as customers we have options - one of them to hit them in the pocket book.  I truly think they make it so difficult that people eventually give up.  If anyone is interested in joining a class action, post something on here and I will create a site for us connect.