revvl v +5g bluetooth

I brought the phones back to the TMobile store where I bought them on May 26th.  The service tech I spoke with at T-Mobile yesterday assured me they would honor the return.  But the store Manager refused as it was 5 days past the 14 day store return period.  So I called TMobile directly and finally got to speak with a tech who spoke good English.  After an hour phone wait and on and off conversation he convinced the local manager to return one of the two Revvls and exchange it for the Nord 200.  But the store didn't have any in stock.  So I'm waiting.  Seems like T-Mobile techs should monitor this forum and provide assistance.  They should also pull problem phones off their shelves.  Apparently they rely on the  companies that make their phones to inform them of problems.  Why not listen to their customers and investigate complaints!