Caller: Scam tax demand

Automated computer voice telling me I had an outstanding tax debt. They gave a number to call back on.
If I didn't ring back they were going to raise an "arrest warrant" for me.
No mention of names or other evidence.

I’ve just had the same message

Had a similar call from a computer generated voice. It said a case was being raised against me in my name. Hung up on the obvious scam.