mbb.mobi-data.com is an APN, the APN has the network settings your device needs to connect to your provider
ENABLE DATA ROAMING
When installing the SIM, some iOS devices and OS versions don’t allow you to access the APN settings within your device. Please follow the instructions below to apply the APN settings.
Please open this web page in Safari on the device in which the SIM is inserted and click on the button below to download the APN configuration file.
Please press Download & Install
You may be asked for permission for the file to be downloaded
Then tap Install > Install Now > Enter your device password if prompted
Or simply scan the QR code on your Apple device with the camera App and follow the prompts.
Should you have trouble with your APN any or other aspect of your service, please fill in the form below.