The customer experience has also been improved through the touch points of the physical channels, the functional redesign of the layout of the branch offices, the introduction of digital signing, the Alert service (bill issue, deadline for meter self-reading, and appointment reminder) and the Tracking function to check the progress over time of one's requests (via SMS, email and notifications on the app and on online services) for an ever-increasing number of processes (switching, transferring, and power level and flow rate changes).