I have 4 unused cards I keep open just for this, seems a complete waste for ever... | Hacker News

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		x87678r on Aug 25, 2020 \| parent \| context \| favorite \| on: Japan facing credit card number shortage I have 4 unused cards I keep open just for this, seems a complete waste for every body.

JMTQp8lwXL on Aug 25, 2020 [–]

Make sure to use them every once in awhile, otherwise the issuer may close them.

smegger001 on Aug 26, 2020 | [–]

I have mine with automatic payments on setup on them and a couple reoccuring bills on each so there is consistent activity and is paid in full before the end of the billing period for just this reason.

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