Question about Instant Pot Multicooker

Question: I'm really interested in this one but, where can I buy an extra Inner pot and extra sealing rings in Switzerland? I really want a multicooker/Pressure pot but almost all them are super big for me (I live alone)! I find millions of Youtube videos and webpages full of recipes and instructions of how to use Instant Pot, including the Mini and honestly for me the Mini is more than enough for me, but I also realize I do really need an extra inner pot (if I need to cook 2 different things I only need to change the pot) and extra seal rings (they tent to get smelly and if something happens to it I have an extra ring)!