Earlier quoted context omitted.
As an Italian, I understand this... but the obvious question is: why didn’t you open it at a branch more convenient for you?
Do people not move in Italy or something? I've encountered the same thing in Germany, when I log in I use the branch number of where we opened the account? Why? Who gives a shit about that? I certainly don't. But the bank does, for some unfathomable reason. For each way German banks are better than American ones, it seems like there's a way in which they're backwards or overly conservative.
Of course, if you do move and you want to apply for a new credit card, they will mail the card and paper work to any of the locations, so it's not that bad. And all of the banks in the group have an unified online banking system, no branch numbers needed. However, when I switched between the different banks, I had to get new login details for the online bank, which was kinda sucky.