Frustrated with the finger recognition machine

The worse administrative experience and setup I've ever had. My mom and dad have each their own Tyme Bank accounts, but unfortunately with opening of it, their cell numbers got connected to the wrong bank account. I've been trying for 2 solid days, to switch the 2 numbers, but NO success. The machine's finger recognition doesn't work, and it leaves us frustrated. Nobody at the service centre can assist, we keep on getting the same answer - you have to do it at the machine. I've had it. My parents are 85 years old, I need to take them to the shop every time, they stood their, waiting for more than 2 hours at a time, while we tried , 2 days in a row. NO success. I will not recommend Tyme Bank to anyone - first update / upgrade your system.