UK News
A decision to use "less emotive" words for problems with Horizon is called "Orwellian", inquiry hears.
Rising oil prices have lifted the cost of filling up but it may prove short-term, claim experts.
Emails show the description of problems with the Horizon IT system changed after chief executive Paula Vennells asked her husband for advice.
The increases come after forecasts for when the Bank of England will cut interest rates are pushed back.
Government borrowing for the year was £6.6bn higher than expected, according to new figures.