insurace tooking out in had to pay twice

pay for my insurace in the usa but the insurace' but i was told that the insurace was no good in germany by the agency in frankfurt .so i end up paying $799.00 .so  iam trying to contack someone at cheapoair so we can talk about my money that was tooking out for insurace in the usa .all i can get is a run around give me your phone number we will call you you back iam still waiting  for the call back;;. booking number 12659016 car confirmation q8658312