Very Disappointed in Nissan

I bought a new Nissan juke 1.2 ACENTA plus in May this year (unfortunately). According to Nissan's brochure the Juke should use on average 5.6L / 100km (combined cycle). I get an average of 9L-10L/100km if my lucky. Regardless of how fast or how slow I drive. Regardless whether I drive long distances or not. And as per Nissan East rand the vehicle is performing as intended. Then lets move on to the fuel tank capacity. According to Nissan's brochure the Juke has a 46L tank. I've never managed to get more than 38L in the tank (no bars left on the fuel gauge). On a full tank I barely made it to Bloemfontein from JHB, on economic mode and not once doing more than 120km/h. My VW polo did 720km on one tank. (the car I traded in for this ******* after seeing it's amazing fuel efficiency stats) Then my badge fell off... again, the car is only 3 months old.<br> This is false advertising! Now I'm struggling to get rid of this car!! I will strongly advise everyone that I know to never buy a Nissan!