I bought a samsung vacuum cleaner VS20C852FTB and which comes with an extra battery. Since yesterday I am trying to register and get the extra battery and the site does not work! I am frustrated, since I have an i phone it does not take the exact picture of the serial number, they do not accept the bill of the store....it is a nightmare. I took many pictures and since I do have an i-phone, Samsung does not accept pictures taken with an i-phone! I do not recommend the product because of the terrible customer service, live chat inexistent, their terrible website and would recommend you look somewhere else to get a vacuum cleaner!