car insurace money paid back

I did rental car to santo domingo on 06/08/12 and i paid the car insurance here when we went there they talked me i have to pay again the car insurance and i decline because they said they don,t make car reservation from usa  i want my money back please MY PHONE IS 526 964 5974  CAR. COMFIRMATION# SITLOO7B81 MY ADRESS IS 8482 SPRING DESERT PL UNT C RANCHO CUCAMONGA CA 91730