I don't know what happened to my post, but it's missed part of it out.
It appears that the forum doesn't like it when you place words in between 2 certain keys.
I can't put the keys on here, as it'll go all wonky again, but when you use them arrow keys (the ones above the full stop and comma) any words typed in between these are deleted.
Anyway, this is what my original post should look like:
Select //// Settings ////
Scroll down and select //// Sound ////
Scroll down and select //// Do Not Disturb ////
Thanks for BA by the way :)