"Hi, my name is Kate", "How do you spell that?". WTF!
And they get it wrong anyway. My partner's name is "Andreea", with a double 'e', and she always makes this fact very explicit, but in 95% of cases they will input it in their systems with a single 'e'.
My name is unusual, but it's one letter off from a usual name in my country. The bank has my correct name in their record, of course. But each time they email me, they use the wrong name. They sometimes even emit me new cards in the wrong name! When I complain, they ask very surprised and say that they are aware that the name in the system is what it is, but they thought it was a mistake, so they decided to emit the card in a different name! Unbelievable! This has happened with multiple banks.