O2

I just noticed that my Galaxy Watch 4 can't make or receive a call and it bothers me a lot.I tried reconnecting them again by scanning my watch QR code, but this showed up. Any ideas?

I have paid off my device and I plan not to upgrade up to 2 years. I've been thinking that maybe I can save money if I choose a 12month airtime plan rather than continuing my current airtime. However, I need insight of how to do it. Thank you.

Can my galaxy watch with an O2 eSim receive linked calls even though my phone has a different network?

Does O2 support number sharing with your galaxy phone and watch? If so, how?