Many of the issues can be resolved by changing both the Transmitter battery (23A or A23 found at Radio Shack or Target) and the Receiver Batteries (2 x AAA). Transmitter battery should be changed every 6 months on a regular basis.
If you are returning product please ship to:
Scott Robert Photography
1834 S. Mayflower Ave, Unit C
Monrovia, CA 91016