I purchased a multi pack of AA {16} batteries and some of the batteries were damaged phisicaly on out side. I inserted these batteries in my cuddy back camera not knowing at the time of issues.. while setting up cam cam indicated issue. Removed Batteries were hot , acid was all inside battery compartment. some of the batteries had flat spots on the out side . How do I get a REFUNDf or the defective pack of batteries. I had to tear the camera compartment and clean all acidy material .