Hi ​@migmig18 there is a general issue with the Wi-Fi calling system, it is impacted nationally. If there is coverage in your area, the service will fallback to LTE.

However the issue for your account is also that you no longer have an active SIM, the eSIM you activated recently was deleted from your phone. You will need cellular service for the initial Wi-Fi calling activation.

Once deleted eSIMs cannot be re-scanned so you will need another voucher. If you were using a physical SIM card prior to this, you can reactivate it instead via your online account, here is a guide https://www.koodomobile.com/en/help/koodo-sim-support If the verification code cannot be sent via email you will need to schedule a callback through the Koodo Assist