The Bonus items came with the Patch on the 21st July. I had pre-ordered and they were in my game the day before with Cottage Living greyed out as not being available yet but the bicycle, etc. could be played with, at least by me.
I cancelled my order on the 22nd because of the internet problems and downtime of Akamai, EA and banks and being told that I hadn't ordered the new pack on Origin, but the bonus items still stayed. I re-ordered it when the problems got sorted out on the web and now I can't get my Sim off his bicycle when he goes out. It could have been the banks' downtime that could have been the problem with my order as I had to put in my card details again.
Therefore the bonus pack must have been linked to the Origin, Steam orders and you'd have to get the bonus's redeemed later by your sellers, probably. You definitely need the latest Patch but the Expansion could probably check and install them for you.