Unable To Remove Spots on Leather

I am afraid this is an old trick used by second hand car dealers, and over the years i have fell foul to this method of hiding stains on leather many, many times.
What ever has spilled on the seats has permanently dyed the colour of the leather, in my experience it will not come out now.
You will need to get the leather seat professionally re- coloured or buy the correct products and do it yourself.
Have a look at the thread / post where the guy does his 355 interior, with the correct tools, products and correct method of application the result was amazing.

 

The post was " Leatherique Custom Dye Issues ".

 

If they are a reputable dealership, i would take the car back and simply explain the situation.
Offering to pay towards some of the cost saves you some money and softens the blow on their side too, far better than going in all guns blazing?

 

Save yourself some headaches by going to Ferrari Dealership or check around for an high end auto upholstery shop that deals in leather color mishaps. When I got my 15 458 I allowed an individual to sit in my car & little did I realize he had grease on the back of his shirt. It discolored a small area of the passenger seat& the color blanched. Nothing worked. Finally took it to the Ferrari dealership who utilized a mobile repair service & they did a great job. Whatever you do don't mess with it yourself. Definetely don't use Leatherique as their quality is not like the old days. The cost was trivial, service ,quality work great.

 

I agree with DocF. Go to the FChat regional subforum where you live and ask the local guys who does leather repair. Get a professional do the work, they do this stuff all the time.