In some countries the government applies taxes to mobile top-up recharge. A percentage of the amount ordered is withheld by the government and this amount varies by country. We have no control over how much the amount is or if you get charged, it is taken automatically after we authorize the full amount of your top-up/recharge.
The tax is usually called consumption tax or sales tax. If you are in doubt, feel free to reach out or contact your local authorities to learn more about taxes in your country with regards to mobile top-up recharge.