I ran into the same problem ordering within Canada. The folks in Canada that imported the container load of kits didn't order any accessories. You get a front or rear wheel kit, and with the default controller and throttle. When I asked about this, I was told after-the-fact. I message was sent to GM by the reseller, but nothing came of it.
Interestingly, when I placed a separate order for a couple of thumb throttles and an extra controller (directly on the GM site), I received them in short order. I'm still down the original thumb throttle I ordered with the first kit, and paid for, to this day.
