Mine was called Widows & Dependants. Remember getting quite a lump sum and so happy - it was actually put into my account - then some time late Civil Service - told me (not definite here) but I need to pay 40% back in Tax.
Think I was paid £7,000 and had to pay back something like £3,000 or it could have been £4,000 or thereabouts.
I got an agreement - I paid first £1,000 and let me pay the other £2-3,000 by instalments. I had had this money quite a while before I knew all about this.