I have a $20 plan. My phone is a Samsung Galaxy Ace, about 5.5 years old. When I text, I have to wait before it will let me type. When I tried to make a phone call the other day, it wouldn't let me dial. I put the phone back in my purse and when I looked at it about 20 minutes later, there was an error message about being unable to dial. I had it paired with my car. A few weeks ago, when I turned on the bluetooth on my phone, a yes/no question came up on the car's screen. After I responded, it said it was dialing. I turned the bluetooth off and then back on. The question came up again and I responded the other way but it tried to dial again. I have since unpaired them.