I'd say you've got a mode 1 Interlink controller...

G3 is available in either mode 1 or mode 2. Mode 2 which has the throttle ratchet on the left side is most commonly used in the USA, with mode 1 most commonly used where you are located. It might have been an error on your part when ordering it, or whoever took your order assumed you'd want mode 1 because of where you live.

Not sure what you'll do now as opened software is not returnable. Try contacting your retailer as well as Knife Edge about the problem and a possible swap is all I can suggest.