o2: Top up your credit - so it'll work

If you want to top up your prepaid credit with o2, this works both online and on site at the nearest petrol station or in the supermarket. We present all possibilities to you.

Top up prepaid credit at o2

• If you leave your bank details or your credit card details online with o2, you can use the express top-up. Charging is then done either online, by phone at 73737 or by SMS with the text "CHARGING" to 73737.
• If you top up your credit by express top-up, you have several options. Choose a monthly amount that is always topped up, or any amount if necessary. Alternatively, you can control the express top-up using the o2 app.
• You can top up your account again with the credit cards from o2. You can find these in various values ​​at numerous petrol stations and supermarkets. Then call the number * 103 # and enter the top-up code.
• If you send an SMS without text to 5 66 56, you will receive the bank details from o2. If you transfer any amount with your phone number as the subject, the amount will be credited to you. However, this process can take up to 5 days.

In the next practical tip, we will show you how to switch to a cheaper mobile tariff with o2.