on 12-12-2018 10:44
Yes there is a mast issue
Sorry, a phone mast close to you isn't working.
Our engineers are working to investigate and fix the issue. While we do this, you might have some trouble with your calls, texts and data.
We’re working as fast as we can.
on 12-12-2018 18:22
Shouldn't need to report it if they are aware although they will keep the OP updated by text.