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Understanding Multiple Charges: Why You Might See Extra Payments

Sometimes you may see multiple payments taken at once for your storage fees — this can happen for a few different reasons and doesn't always mean something's wrong.

Written by Gabby Adams

This guide will walk you through how to check your account and confirm that your invoicing is correct!

There are a few instances where you might see multiple payment leave your account in quick succession:

  1. Backdated storage contracts

  2. Uncollected wawa invoices

  3. Uncollected prior EMR invoices

Backdated storage contracts

When a clinic first moves over to wawa, they sometimes need to set up a storage contract that covers fees going back to when your original contract started — not just from today. This is called a "backdated" contract, and it can result in several invoices being issued in quick succession, as the system works to catch up on the months that were missed.

For example, if your clinic creates a contract starting from January 2026, but it's now June 2026, the system will generate an invoice for each month in between. That means you'd receive daily invoices for January, February, March, April, May, and June until the contract was caught up. If you've added a card to your account, these invoices will be charged one after another, which can understandably feel surprising if you weren't expecting it.

Uncollected wawa invoices

Sometimes a clinic will add invoices to your wawa account gradually over a few months — for example, two invoices in January and one in February — but you may not see or add your payment card until later, say March. When you do add your card, it will be used to collect payment for all the outstanding invoices at once, not just the most recent one.

So in this example, you'd see three payments go through in quick succession, all to the clinic. This is expected: your card is simply settling the invoices that were already waiting on your account, rather than being charged multiple times for the same thing.

Uncollected invoices from an old system

Occasionally, a clinic moving to wawa from a different billing system may still have older, unpaid invoices sitting on that previous platform. For example, if your clinic switched to wawa in January 2026, but you had an unpaid invoice from December 2025 on their old system, that invoice may still be collected separately, at the same time as your new Wawa invoices.

In this situation, you might notice multiple payments leaving your account in the same month, one for the older invoice on the previous system, and one for the new invoices on wawa. This is expected during a transition period, and doesn't mean you've been charged twice for the same thing.

How to check your invoicing is correct

  1. Review the invoices you've received. You can find these in the app, in your email, or via your browser.

  2. Make a note of each invoice number. Every invoice should have a different number, since each one covers a different month of storage or treatment, for example.

  3. Count how many invoices you've received, and check that this matches the total number of payments taken and that the amounts of the payments match those on the invoices.

If everything lines up, your invoicing is correct and there's nothing further you need to do.

Need more help?

If you'd like help understanding your invoices, making a payment, or you think something isn't right, please reach out directly to your clinic using your usual contact method. They'll be able to talk through your invoicing and payment options with you. wawa manages the platform itself, so unfortunately we're not able to assist with billing questions directly.

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