I had the same issue macphee70 and it was because I was on the older contract which was subject to the price rise and they said the newer ones are not, so maybe this is the case for yours as well.
Bearing in mind I signed up expecting free caller display and free 1571 will the new charges for this be a reason to leave?
Not if you can cancel those items without penalty.
I wondered that but don't have the will to look into why the online checker shows my BB to be unchanged. So I'm just getting Caller Display (hitherto free, so the end of a bonus rather than the start of a charge) and a bit on Sky Sports (discounted by £5 anyway). I reckon all the fuss is just a rewrite of an old BT mantra - "It's good to balk."
I've just reported this obscene hidden price rise to Watchdog, hopefully if enough people do likewise (as long as they spot the rise in the small print) then we will get some results. I'm disgusted by the extra charges and in particular by the way BT try and hide the fact by quoting "no change".
the increases are not a secret and have been published in the press
I agree, they are hidden. BT provide a link for us to check how the changes affect us personally and then deny the increases when you ask to leave, so I can understand the frustration. This is definitely an issue Watchdog should take up.