Warning - rant ahead
I've been NC with "D"M on and off (with the on periods a lot shorter than the off ones!) for around 15 years, most recently for the last three years.
Recently she's made a renewed effort to ignore my wishes never to see her ugly, self-centred face ever again, she really seems too thick to get the message.
So far I have had a birthday card and a Christmas card (both signed "mum" though I've refused to call her that for 15 years, referring to her by first name instead) and I know from experience this will escalate to FB messages, emails to my work address and texts.
How the fuck can I make my message any clearer?