Grüezi mitenand / Greetings all,
I recently purchased my new glasses here in Switzerland and they gave me a receipt for my Health Insurance too. My Health insurance is Atupri (HMO), btw.
What am I supposed to do now? Do I need to write some special letter, just send the receipt to Atupri, or what? And if so, should I do that within the end of the year or within some other specific date?
I only moved here very recently and I am still unfamiliar with the whole Health insurance/Krankenkasse process so I could use some help.

Thanks in advance.