Thanks Energieboy for having a look. Unfortunately, this doesn't work for me so I suspect this is a bug somehow related to my personal account only. Really tested with Windows, macOS, and any sort of browser making sure to allow everything, but from developer mode, I can see the following exception:
Uncaught Error: Invalid response received
at Object.onSuccess (smapi4.0.0_min.js:1:5857)
at t.async.t.onSuccess.p.onload (smapi4.0.0_min.js:1:4144)
Will call the phone number and do the old way 🙂
Thank you very much !