I am following the first example given on the page link for the API of mercadopago, but when I try to use other values (changing the price, the title, etc) it sends me to make a purchase of a product that always has the value of the example ($ 10) and that has by title that "Multicolor kite" that is also in the example. Try the link both sandbox_init_point and init_point to dry, and in both cases the same thing happens. Does anyone have an idea because it does not take other values?