Misleading sales prices! So disgusted!!

I browsed for a Ford Ranger and saw one for R357 000 and then same page in that add it saya you can get deal assistance of up to R50 000. When you go to the dealer they tell you that R30 000 is already included in the website prices which is bullsh*t because the price did not say that at all. The R30 000 is a gimik because why not just make the car R30 cheaper and say you can get a further R20 000 deal assistance. This is so misleading as I expected the car cost minus a possible deal assistance of up to R50 000. What are going to do to rectify this for a very ****ed of client?!?