I went on the 'My Tello' account, then to the 'My SIM' area. There, I discovered a QR code, which I scanned with my camera, and also a new 'eSIM2' record appeared while in the 'Sim supervisor' underneath the 'eSIMs' section (I have already got 'eSIM1' with a different company). https://johns000rlc1.wikinstructions.com/user