Quick answer

The purchase process at Mundpay involves some validations carried out both by the platform and by your bank or payment provider. If any information is incorrect or the transaction is not approved by the operator, the purchase may not be completed. In this article, we explain the main reasons that can prevent payment approval and what to do in each situation. To make a purchase through Mundpay, you need to fill in some information on the payment page. This data may vary depending on the product, but it is very important to review it carefully before completing the purchase.

Why can't I complete my purchase or why wasn't my purchase approved?

The purchase process at Mundpay involves some validations carried out both by the platform and by your bank or payment provider. If any information is incorrect or the transaction is not approved by the operator, the purchase may not be completed. In this article, we explain the main reasons that can prevent payment approval and what to do in each situation.
To make a purchase through Mundpay, you need to fill in some information on the payment page. This data may vary depending on the product, but it is very important to review it carefully before completing the purchase.

Situations that can prevent purchase completion

Personal information filled in incorrectly
Check if the following information has been filled in correctly:

  • Full name, without special characters
  • Valid email address
  • Phone number, without the country code (the country is set at the beginning of the purchase)

Errors in payment data
Check the information below carefully:

  • Card number
  • Cardholder name exactly as it appears on the card
  • Expiration date
  • Security code (CVV), with 3 or 4 digits

Other common situations

  1. There was a problem generating the bank slip

Check if all data was filled in correctly and try again. If the problem persists, we recommend using another payment method or another device. Unpaid bank slips are automatically canceled after the due date.

  1. Product unavailable for purchase

This indicates that the seller has removed the product from sale. In this case, we recommend contacting the responsible seller directly using the information available on the payment page.

  1. Problem with the credit card operator

Check if there is available balance or contact your bank to confirm if there is any block or temporary restriction.

  1. Purchase already made

Check your email inbox to verify if there is already a purchase confirmation for the same product, avoiding duplication. If the purchase has been completed, you will be able to access the content through your purchase area.

  1. Invalid VAT entered

If you have a valid VAT number, make sure to enter it correctly at the time of purchase to avoid improper tax charges.

  1. Currency conversion error

In international purchases, currency conversion failure may occur. In these cases, we recommend contacting the seller through the email available at the end of the payment page.

  1. Card without credit function

Confirm with your bank if the card used has the credit function enabled for online purchases.

Every step from here exists because someone already got stuck on exactly that one. It is not excess detail, it is the detail support repeats most.

Wellington CostaGlobal Payments Specialist

When the purchase is not approved

After completing the order, the purchase goes through the following steps:

  • The bank or card operator analyzes and approves (or not) the transaction
  • The payment platform confirms the operator's response
  • Mundpay recognizes the payment
  • If approved, access data is sent to the email provided in the purchase

Reasons for the bank or operator to deny the purchase

  1. Payment denied by the issuing bank

Even with available balance, the bank can refuse the transaction for security reasons or because it considers it outside your usual usage pattern. We recommend contacting the bank to authorize the purchase.

  1. Insufficient balance

Check your available balance or use another card. It is also possible to try another payment method, if available.

  1. Card not enabled for online purchases

Contact the card operator to request authorization for internet purchases.

  1. Purchase canceled, but amount appears as charged

In some cases, the amount may be temporarily reserved in your card balance. This amount is automatically refunded by the bank after a few days.

  1. Payment via bank slip or transfer with incorrect amount

If the amount paid differs from the original purchase amount, the transaction may be rejected. In this case, review the information and make a new purchase attempt.

Updated on: 11/02/2026