The minimum payment is a percentage of your balance, so it falls every month you make progress.
On a 4,000 balance at 22.9 percent, minimums alone take about 17 years and cost around 6,500 in interest.
Freezing that same first payment instead of letting it drop clears the card in under five years.
The FCA found people stuck in persistent card debt pay about 2.50 pounds in interest for every 1 pound repaid.
Read the full guide
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