I just had the same thing happen to me by a seller in Houston, TX. I am wondering if we might have bought from the same person. Through another board, I recently purchased an Ikelite G12 case, wide angle adapter, Ikelite DS-51 strobe, flex arm and sync cable. Only the Ikelite case and wide angle adapter showed up. When I inquired about the strobe, flex arm and sync cable, he claims to have shipped the item. He claims that the box was tampered during shipping. However, the box showed no signs of tampering. Nor was the box big enough to fit the strobe. The postage on the box showed that the box and contents weighed 7 pounds 6 ounces. When I weighed the box and its contents on my Uline digital scale, it weighed 7 pounds 6 ounces. Again, just in your case, the seller claims that his responsibility stopped upon shipping.
So, if anyone on this board is potentially going to do a deal with someone in Houston, TX, feel free to PM me and I will give you the name of the person who ripped me off so that you can make sure you don't get ripped off too.
This is the same guy. Initials DS. He uses the login Hex Kraut on some of the boards. If anyone has information on this guy please call the postal inspectors office at 877-876-2455 and refer to case: CA103954008