WiFi calling option missing from Settings

I have a Samsung Galaxy S23 with a Lebara SIM. Mobile signal is poor whenever and where ever I am indoors so Wi-Fi calling would be extremely helpful but it does not appear as an option in my phone Settings in the Connections section where, I'm told, it should appear between WiFi and Bluetooth.
I have read a previous post but it seems to have been abandoned due to no resolution.

Has anyone resolved this issue on their phone and able to offer any advice?

Thanks

On my Android phone Wi-Fi Calling is set up via the telephone app, not the phone settings. This is how I do it on my phone although yours may be different if it is an iPhone: -
Open Telephone app (as if you are going to make a call) > press the ‘Hamburger’ icon (3 horizontal lines) > Settings > Calling accounts > Lebara > WiFi Call > Use Wi-Fi Calling - Select this and enable it. Then close your telephone app.

Wiganken thank you for your assistance and I found and enabled the setting as per your instructions.