During a recent internal audit we found that our insurance provider has been charging us for 2 locations. One location is our actual store the other is a storage unit we had for about a year. We have not had the storage unit for 3 years now but have been paying for insurance on the unit(did not realize this). I asked for a credit they said no. Am I intitled to a partial refund? What do I need to do now. Im guessing total amount i overpaid is about $3000.