American Kar LLC ordered speedometer cluster, received it did not work, sent it back, did not send me a refund. Allentown Pennsylvania

I ORDERED A SPEEDOMETER CLUSTER FROM " Amercan Kar LLC " over the phone after seeing their add on the internet. They sead they had one in stock. so i ordered it gave them my credit card number and they said it would be coming in the mail in about 7 bussiness days. they sent me a email saying the part they were going to send out was faulty so they sent me another one instead. i received one from " Schmidts American". it was faulty also. I called "American Kar LLC " They sead to send it back so i did. this has been over three weeks ago. i have tried calling "American Kar LLC" and don,t get a answer. just a recording.I think their just avoiding me. " Ripping Me Off".