1und1: Set up a third-party lock - how it works

Unintentionally, subscribing to your mobile phone can result in high costs. In our practical tip, we explain how to set up a third-party lock at 1und1 to avoid this.

Set up a third-party lock on 1und1 - so it'll work

You can easily block paid services online at 1und1:

1. Open the 1und1 Control Center in the browser and log in with your access data.
2. If you have several contracts with 1und1, select the relevant mobile tariff on the home page.
3. On the following overview page, select "Settings & Services" and there "SIM card services".
4. Now open the "Data service" area. Next to "Mobile payment (WAP billing)", select the "Deactivate" check box and click "Save" to block the third-party provider.

How to set up the third-party lock at Blau.de can be read in another practical tip.