The model with the external video connector is definetly scandoubler only, i have one.
I also have the two clip internal model that has the missing chips, that is the flickermagic, although the leaflet that comes with it says scanmagic/flickermagic.. so easy to get confused..
There is a third model which has the missing chips and is the two clip internal. I assume this is the scanmagic only.
I have not seen the third in person, only photo's.
I don't think you have been ripped off as such, just the seller misinformed.. no doubt you can re-sell on for a similar price as they are quite scarce anyway..