Last month I received a time dependant insurance letter from the UK, which took 77 days to be delivered.
I then wrote to TVP in Newcastle, just to set my mind at rest (twitch, twitch) to ask if there was a life certificate outstanding for me.
Yesterday, I received a reply, part of which is below.
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Thank you for your email to Newcastle Pension Centre (International Group) dated 30 January 2020.
I have checked your records and you have not been issued at present with a Life Certificate.
They are issued yearly, picked at random by computer, but not everyone receives one .This is not going to impact upon your pension.
Apologies for any concerns you may have.
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This seems to me, that you don't know you've got one outstanding, until your OAP is stopped.

Peter