Safe and secure
Immediate code access
Delivered within 15 seconds

Buy O2 online

Want to top up your O2 prepaid balance online? At ReloadBase you get your recharge code instantly by email, no registration, available anytime, and 100% secure. Perfect for quick top-ups, travelling, or as a digital gift.

O2

ReloadBase.com is an official seller of O2
 15,00
O2 €15 Prepaid Credit
Top Up

Top Up €15

Instant top-up, unlimited possibilities

 15,00

Immediate code access

Order now
 20,00
O2 €20 Prepaid Credit
Top Up

Top Up €20

Instant top-up, unlimited possibilities

 20,00

Immediate code access

Order now
 30,00
O2 €30 Prepaid Credit
Top Up

Top Up €30

Instant top-up, unlimited possibilities

 30,00

Immediate code access

Order now

Frequently asked questions about O2

How does an O2 recharge code work?

With a digital O2 recharge code you can easily top up your prepaid balance. After purchase you receive the code instantly by email and can redeem it directly on your phone or online.

Where can I buy O2 credit?

At ReloadBase you can buy O2 credit securely online. Choose your preferred amount and receive the recharge code instantly by email:

Which payment methods are available?

You can pay with PayPal, instant transfer, credit card, or cryptocurrencies, safe, fast, and without registration.

Is buying from ReloadBase secure?

ReloadBase is a verified provider for digital credit in Germany. Your order is processed securely and the code is delivered instantly by email.

O2

Customer Support

Website

o2online.de

Purchase with confidence

Official seller
Safe and secure
Immediate code access
4.4

Trusted by 26 happy customers

Read our reviews on Google

About the author

Amina Yusuf

This product information about O2 was carefully written by Amina Yusuf, an experienced telecom specialist with many years of hands-on expertise in digital communications and prepaid solutions.

Thanks to her in-depth knowledge and dedication, she provides clear and reliable information, helping you make informed decisions with confidence.

ReloadBase is an official seller of O2 and only sells 100% legitimate codes.

Last edited on 29 August 2025

Amina

More Top Up

Pay safely with

paypal
For safety, we do not accept any transactions from a VPN. Disable your VPN if you would like to make use of our service.