I don't believe that anyone who is not working and is of pensionable age should be paying tax at all, however your hard-as-nails debt collectors have managed to threaten to visit the home of a frail 95-year-old widow and confiscate her possessions, even though she has paid too much tax.
The letter warned: 'We are arranging a visit to your house. We will view your possessions and list those that we will sell at auction. We strongly advise you to avoid this as it will cost you much more to pay this way and can be embarrassing.'
Ironic really as it turns out that the embarrassment is all HMRC's - again! It's been plastered all over the internet here, here and here for the world to witness your tough stance on old people.
If you insist on bullying old and vulnerable widows because they are easy targets - at least make damn sure that they actually owe you money.