New SIM card not working on my iPhone

[Newie1980]

I have received a SIM card from Vodafone.de but when I put it in my phone and enter the pin it state I need to contact my service provider to get the phone unlocked 

[Gr3g]

Well, then the iPhone isn't unlocked yet. Have a look at:

https://support.apple.com/en-us/HT201328