Delivering wrong parts is usual with their service, even if you do all correctly on your side. Then, the customer service will make you pay the shipping cost twice so that you don't return it for small items and still have to purchase again + more shipping. This is a part of their business, they count on it, it's kind of a scam. Also, the customer service will be impolite and will not allow you to reply after they understand that this is the situation, they present the solution and go offline.