Did you order them from Amazon? If so you probably got them from the same Chinese seller I did, and not realizing they ship via a super slow boat until weeks after I ordered I was pretty bummed that I didn't notice sooner. To top it off they only sent me 1 of the 4 Y cables I ordered, so I am currently waiting another ~3 weeks for the remaining cables to show up.
Nah Ebay, yeah I guess they will arrived next month
EDIT: http://www.ebay.com/itm/221661361513
IF they actually ship them! I ordered from the same seller and after about 7-8 weeks, nothing, not even a email saying that they were shipped. So contacted to find out if they had shipped them yet and if they hadn't, to just cancel and refund. They refunded.
So I found some cables for cheap and made my own.
Damm