Mobile data not working: iPhone 6s Plus iOS 11.04

[daniela3060]

1) Does the issue happen in just one location? No it happens everywhere
 
2) What is the full postcode (e.g. ST1 1AA) of where the issue occurs? It happens everywhere
 
3) Does the issue occur if you try your SIM card in a different phone? Yes, it happens in every phone
 
4) What errors are seen or heard when the issue occurs? “You are not subscribed to a mobile data service”
 
5) Does this happen on 2G, 3G, 4G or all? All
    
6) When did you first notice this issue?
February 2017
 
7) Is the issue permanent or intermittent? If intermittent, are there certain times of the day when it occurs?
Permanent.

[BandOfBrothers]

As the issue is happening everywhere  @daniela3060 and I assume in known to be working phones with the correct pay monthly or Payg specific apn settings in them _ text WEB to 40127.

Then this sounds like an account issue or the SIM card is degrading

to which I'd suggest to first call Customer Services on 191 or Live Chat and they'll check your account. 

You can personally check your myvodafone to ensure no data bar is toggled On. 

To add if it is no bar and your account is reported as Ok then any Vodafone High street Stores can replace the SIM Card via a SIM Swap.