I never received a notification letter or notification email about the April changes. I am a customer with a specific contract and expect to be communicated with directly regarding my specific service.
Of course when I put it to BT that I hadn't been notified they immediately claimed they'd sent it. "Check your spam", "Every customer received it". The usual trotting out of an "explanation" but without actually checking.
I asked them for proof. They said they couldn't resend the original. Mmmm. Nor could they scan and send a hard copy. Mmmm.
Were these real limitations or just excuses? Mmmmm. Nothing in MyBT either.
When threatened with action it suddenly emerged that it was never sent! - as although BT have the correct email address for me it wasn't included in their price notification emails.
I argued the "30 day notification rule" and won.
I thought it had failed, so I registered again with a different user name. That worked immediately, only for the first one to pop up hours later 
