Cable length is wrong

Unfortunately the cable we received was marked on the package as a 6 foot cable but what we received was a 10 foot cable which we cannot use due to EMC discharge requirements. When we contacted customer service about the issue they would not take it back as they were adamant it was 6 feet even though we had it in our hands and had physically measured it, doubtful I will use this company again especially since they also refused to check their inventory to see if all stock of this cable was the wrong length.