A few months ago I used my unlocked galaxy s21 ultra. It suddenly stopped working, stating I had to upgrade my plan. I proceeded to do so and now pay an extra 15 dollars a month for this privilege. Now it is no longer working, and this time verizon help assistants are simply saying my phone doesn't support mobile hot spot -- which is absolutely untrue. Has verizon arbitrarily decided to just dump my phones model in an attempt to get me to buy a new device? Please give me back my hotspot! I am paying for it!