Fixed costs don't change, £100 remains £100. As long as Farage doesn't win with his retard party, minimum wage is very unlikely to drop. It may fall relative to inflation, but that £100 debt repayment will remain £100 as it is fixed there.
Inflation makes debts get smaller too. If we get hyperinflation for a few years I could pay off my 2023 house purchase for the cost of a 2028 chocolate bar.