Car Part Kings

Sent me the wrong ECM for my car. Been asking for return instructions for 5 days now., filed a complaint with pay pal, the only response so far from them, they denied my request and told me to return the item. how do I do that if they won't give me instructions how to.

Ordered a Catalytic Converter $165 incl. shipping-received an old backpack, called and complained
never returned my money would not take my phone calls, out $165. Do not use this company!!!!!

WARNING STAY AWAY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
I ordered 2 parts. Car King charged my credit card instantly for the 2 parts then called me claiming 1 part was not in stock. 3 days later my order still listed both parts and claimed a shipping label was created. 2 days later they said order was shipped and both ordered parts shipped even the one they said was not available one box one tracking code. I receive the package and on the outside of the box it stated only one part was in the box with the said tracking code. I opened up the box and I find a small box inside with the part number of the part I was told was not available. I opened up the part box and I find a wrong part with a different part number. I called and got a rep and he confirmed only one box was shipped. At the same time he claimed the other part that that I did not receive and was suppose to be available was not in stock or available. As far as the wrong part he said They will ship me another one direct from factory and when I said for him to send me a return label for the wrong part sent he said the 14.11 part was not worth them to get back because shipping cost more than it was worth. He also said my credit card will be refunded for the part I did not receive. At this time my account with them still says both parts were shipped and order complete. My credit card has not been refunded and e-mails or phone calls have not been returned. I did a internal e-mail on their website asking where is my refund for the part not received and where is the replacement correct part I was told I would receive for the boxed wrong one I got. OH, I got a response from that and all it said was for me to send it back on my Dollars. Nothing about any refund on crooked charging of my card for Items the website said many were available then none available or received much less about any parts being shipped.
PEOPLE if you read this Google for complaints and also read BBB complaints on this company. You will see this is not a sole problem and also if you get a wrong part Carpartsking will not honor the free return for parts shipped that are faulty, the wrong part shipped at their mistake.

Been on the phone now for over an hour trying to see why only one part arrived when I paid and ordered 2. Been placed on hold 4 times and then disconnected. No answer to chat. Left several messages on voice mail. Still no answer. Sent emails. Still no reply. The part that arrived is great. But try to get an issue resolved? Impossible to contact them and correct.

Ordered 4 ignition coils from them on Saturday the 8th and received them Friday the 14th of August, shipped from New York to California. Well packaged and as expected, excellent service and price. Will definitely recommend to friends and family, also will mention to everyone on the forums I frequent. Would like to mention I was going to originally order my parts from Autohausaz but had a bad experience with them instead I discovered this company which I plan to use moving forward.