- Insert a payment card into an ATM
- Enter the PIN code of your payment card
- Check the menu and locate and choose the mobile phone, O2, and Recharging entry
- Choose the amount that you wish to recharge your credit with (CZK 200, CZK 300, CZK 500, CZK 900 or any amount between CZK 200 and CZK 9,999). It just needs to be in full crowns)
- Enter the phone number of the O2 prepaid card that you wish to recharge in a national nine-digit format
- Enter the phone number where you wish to have the confirmation of recharging sent (it can even be a number of a different operator)
- Choose "Confirm"
- If you specified a phone number for recharging confirmation, you will get a confirming SMS message. If you enter nine zeros the confirming SMS message won’t be sent
- A Komerční banka ATM prints out a receipt. Nevertheless, it cannot be used as a taxation document