When the customer tries to add a new card in the My account section of stores whose affiliations doens't return a synchronous answer, the system will return an error occurred while trying to register the card and an improper charge of R$1,50 may be generated.

This error occurs because My Cards wait for a synchronous answer from credit card acquirers and most of them doesn't return an immediate response.

1. Go to the VTEX Admin.
2. Configure the acquirer Mundi.
3. Configure a credit card payment method — such as Mastercard, Visa, American Express, etc. — to be processed by the acquirer.
4. Go to your store's home page.
5. Log in by entering your email address and password.
6. Click on My account.
7. Go to the Credit cards section.
8. Click on Add new card.
9. Fill in all the fields and click on Save new card.
10. This process will return an error and the customer will be charged the amount R$ 1,50, which may or may not be automatically returned later.

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