If your vodafone has been out since around 3pm today, go on your pc/laptop and enter the url 192.168.1.1 and hit enter, from there, use your password to log in to your router, usually found on the bottom of the router/back of it.
Go to dns settings, if you dont see this, hit expert mode in the top right corner.
Then go to dns, hit manually change, then top line 1.1.1.1 and second line 1.0.0.1 hit apply
After that disconnect and reconnect all your devices whether thats through ethernet or WiFi and you should be back online.
Im not a tech person, this is just what I did to get mine working and it seems to be the go to method as of right now.
Source: r/Vodafone · by /u/Vegetable_Narwhal236