Simplemicro.com Sells defective products and doesn't refund shipping and handling Internet

Beware of www.simplemicro.com they sold me a bad battery for a compaq evo n600. They wanted for me to ship it back at my expense, which I refused. So after some discussion they mailed me a shipping label. I tracked the package until they received it 3 days latter. I called to ask If I could get another battery YThe women said no that she would credit my credit card the cost of the Battery minus shipping I said that wouldn't be acceptabe.
and said that I would call my credit card company and ask for a charge back of the full amount. As I explained to her I had received a battery 2 days before for the same laptop and had no proplem with it I gave her the order# of the good battery and then she accused me of trying toi get a credit card charge back for both which I tryed to explain was just for the one bad one. and that I was keeping the good one. Someone in the back ground told call the FBI which I doubht would doing anything. But any these people will give you a had time if you try to return anything.