Revvl V+ 5G is randomly deleting contacts

I noticed this happening to me and my wife several months back and was not sure what was happening. My wife has the same phone and was having the same problem.  It was not until an emergency arose that I started to dig deeper into the issue. I actually had to call my wife to have her call someone else to have the individual I needed to reach call me. This was total nonsense. As a Realtor the phone and the contacts in the phone are critical to communicate with clients in a timely manner. This has more than likely cost me untold thousands of dollars in lost revenue. T-Mobile is not going to take the phones back and wanted to charge me to switch to another phone. THEY WANTED ME TO PAY BECAUSE THEY SOLD ME A SUBSTANDARD PRODUCT WITH KNOWN ISSUES. What does that tell you about their moral compass or their care for customer satisfaction? I don't do business with people or companies that I can't trust. The next battle will be the one where they want me to pay off the unpaid portion of the phone price for a deficient phone that has caused me to lose business and clients. I will post what happens in the soon.  Next step is the Better Business Bureau to see if they have any recommendations of federal entities that may be able to help.