Hello Ribar1986,
Thank you for using Apple Support Communities. Based on your post, you'd like to know how you can receive a QR code record for a vaccine. We'll do our best to assist.
According to the resource you came from, "You can download verifiable vaccination and test result records if your vaccine or test result provider supports this format. Check with your provider to see if they support verifiable health records.": Add verifiable COVID-19 vaccination information to Apple Wallet and Health
However, this is limited at this time to the US, UK and Canada: View health records on your iPhone or iPod touch
For more questions about adding your vaccine card to the Wallet app, we'd recommend contacting Apple directly: Get Support
Wishing you well, take care.