2nd Generation Keypad not working

Bought the Ring Alarm Bundle with the extra Keypad. After a month, the keypad was not working ?! (nil lights and nil response when pressing the keypad) Tried different ways to fix the problem by charging the keypad, reset with the pin and remove the keypad from the base system .......still in vain. Eventually, Customer Service admitted the keypad was a fault device. Not impressed with the fact that there is not enough online information or support to show me how to detect / diagnosis the problem. Not impressed with the quality of the devise. Hopefully, the alarm system could last for couple of years.