Thanks for your response. 

I have the latest updates for both the iphone and the green go payment app. I cannot use the app to update the card reader itself because it won't stay connected for more than a second or two. I'll have to call customer support for a fourth time. I was supposed to get a call back from a "level two customer support agent" by the end of the day but they never did call. I have gone through all the troubleshooting suggestions several times.