I believe (and don't quote me on this :P) that BT say they are bringing a large number of their call centre operations back to the UK.
Correct. Last September, BT announced their intention bring at least 80% of customer service traffic back to the UK by the end of 2016. I've not noticed any update to that in the last year and there's no obvious sign of any change so far.
@Alwaysangry, welcome to the modern world! It's called Capitalism, you'd have to go back to the 1950's to have the kind of world you want. It's time to wake up and smell the coffee, this is 2016 not 1956. If you want change, set up your own ethically run company, what do you expect, everything to be fair and everyone to love each other? That's never going to happen.