Hell with phone police, looks like they've got phone enforcers over in the UK:
A householder has received a letter threatening to put him in hospital if he did not pay his phone bill.
...
The letter reads: "Dear Mr Harding, With regards to your bill, your balance presently stands at £292.65p as from 23rd August your bill will be £600."Failure to pay will result in you being hospitalised. If you thought the events of July 7th and July 21st were bad that is nothing compared to what will happen to you."
I always roll my eyes at my wife's panicky reactions to strongly worded collection notes. But this one, this one I'd probably take seriously.