Your store will be put offline soon
+1 near-identical email
Dunning: a charge failed or a card is expiring. Real examples, captured from actual signups.
Failed payment emails (dunning emails) tell customers a charge did not go through and ask them to update their card. Good ones recover a large share of revenue that would otherwise churn silently.
Most failures are expired cards. A calm, matter-of-fact tone works best.
One button to update the payment method, ideally without logging in again.
When you will retry, and when access would pause if nothing changes.
Two to four emails over one to two weeks recover more than a single notice.
What the 9 examples in this collection have in common.