Write off your Debts with a Full and Final Settlement ?

Where could the money come from?
You suggest a “Final and Complete” settlement.
You can write to your creditors and propose a F&F if you have a lump sum. You can do this yourself; there’s no need to hire a lawyer to draught a letter that’s no more likely to be accepted than your own offer.
Where is the money going to come from?
The lump payment could come from any of the following sources:
It could be offered by a relative (although think about whether your relative can actually afford it – if your condition is terrible, it could be preferable to go bankrupt than to accept money from a related); Alternatively, if you are over 55, you may be able to draw money from your pension if your creditors agree to a low enough settlement.

https://nationaldebtlines.co.uk/full-and-final-settlement-offers/