Actually, it may do - if you happen to get one of the many reps who try to charge you a fee because they think you should be able to carry out your request online.

Just a couple of weeks ago I actually got two reps in a row, both of whom insisted that the website would allow me to upgrade the class of travel on one leg of an existing Avios 2-4-1 booking. Which you have never been able to do.

By the end of the second conversation, I was getting ready to kill myself.