MergeNinja
Stripe Gyms & fitness studios

Failed Payment / Card Update Letter

A friendly "your card didn’t go through" letter for delinquent members, from Stripe customer data.

Download .docx (free) No email required

Merge fields in this template

«Name»«AddressLine1»«AddressLine2»«City»«State»«PostalCode»«DefaultCardBrand»«DefaultCardLast4»

Data source: Stripe customers

How to use it well

  • Sync Stripe customers and filter to Delinquent = true. Most failed payments are expired cards, not unwilling members. The tone should assume good faith.

[Your Company Name]

[Street address · City, State ZIP · phone · email]

[Date]

«Name»

«AddressLine1»

«AddressLine2»

«City», «State» «PostalCode»

Dear «Name»,

We tried to process your membership payment, but the «DefaultCardBrand» card ending «DefaultCardLast4» on file didn’t go through. Usually it’s just an expired card.

To keep your membership active, please update your payment details at the front desk or at [billing portal link] within the next 7 days.

If you’ve already updated it, thank you. You’re all set. See you at your next workout.

Sincerely,

[Your name]

[Title · Your company]

Sending this to more than a handful of customers? Connect QuickBooks or Stripe and MergeNinja fills this letter in for every customer automatically: amounts, dates, days overdue, all of it.

Start free trial 7 days free · no card to start

Template questions

How do I use this template?

Download the .docx, open it in Word, and replace the [bracketed] placeholders: your letterhead, dates, and any wording you want to change. The «field» codes stay: they fill in automatically when you merge. Then upload it to MergeNinja (or use Word's own mail merge) against your Stripe customers data.

What are the «fields» in the letter?

Real Word merge fields, named to match MergeNinja's Stripe customers dataset exactly. Connect read-only, sync, and every field fills in with live data. No renaming needed.

Can I change the wording and formatting?

Completely. It's an ordinary Word document. Fonts, logo, layout, and tone are yours to edit; the merge only fills the field codes wherever you leave them.

Is the download really free?

Yes. No email required, no watermark. If you later want the letters filled in automatically for your whole customer list, that's what MergeNinja is for.

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