@RainingYetAgain
Yeah, I have had mixed feelings too. I had a letter in about 1995 telling me I would not get my pension until I was 62 years and x months. I was working, so I assume that HMRC /DWP had an address for me, and maybe thats why others didn't get their letters.
It was the overnight change from that to 65 in 2010 which surprised me, it took me a while to realise that I would be affected.
I never got a letter, not sure why, but I knew about it as a ran a payroll so got all that sort of govt information at work. I'm pretty sure I heard it in the media as well. People have said to me I must have got the letter but as it was connected to my work (I was advising other women and pay, conditions, pensions) I would definitely know if I'd got it. I know I eventually got a letter but it was years later.
I'd budgeted so I could retire at 60 as my husband was older than me but couldn't manage the extra 18 months.
The second change was a shock. I was due to retire at 63.5 and retired at just 65. If I'd been a day older I would have retired earlier, I think it was 3 months. Now that was a smack in the face.