Tony is located in Pensacola, Florida. Hes a real nice guy and he does high quality work. I know he is a Futaba Rep, and Im not sure but I think he is a factory authorized service location.
Heres the website. http://www.radiosouthrc.com/
If you are only getting 1/2 of the stick working you may need to turn on the link to get the two ailerons servos working together. Just go into whatever mix you are using to run your aileron and make sure the mix is "activate" and the link is "on" also, make sure the rates are turned up and not on a low number in your endpoint or atv setup.