Kamvas Pro 12 Missing components?

Greetings, i am quite confused, the product that i bought and that arrived recently was the Kamvas Pro 12 and it only came with 2 plugs, the UK and the EU and according to the manual theres 4 in total and my issue is that my country uses mostly the US standard plug and not the other ones so i cant use the product. Is this intentional? does the plugs come randomly? does they come depending on where the buyer lives? was a manufacture or package mistake? or not all the plugs come in the product?