I guess it was a bit too early to force the eSIM change. Some carriers still don't have good support for it. I heard some carriers offer dual support, in the sense that you can use both the physical sim and the eSIM and so not worry about swapping. In my case, I was able to make the change online, and the QR was delivered to my email, although I had to wait 12 hours for activation and was restricted for another 12 hours as a security measure. It can be frustrating.