So firstly I don’t have an esim working on my watch, I don’t have one that offers that.
I also tried the phone but when I called no one knew what an eSIM was! To get the QR code I went to Vodacom World and chatted to one of their service consultants. I told her I wanted an esim attached to my existing number (it’s basically a duplicate of your main VC number). She told me she didn’t think it would work but I kind of insisted and she went through the process. I had to approve a R100 activation fee and R25 monthly fee, then she emailed me a QR code and a PIN was sent via SMS. Under mobile data on iPhone you can add a data plan, which opens your camera and scan the QR code. You may also need to input the PIN.
Then a new data plan is available on your handset, you can choose how you want to use it, voice, data or both and that’s it. You can have either the physical sim only running or the eSIM or both. It’s super handy.