I'm on Plusnet (EE).
Requested and in literally 10 minutes went into settings, check for update and the beta was there.
Highly impressed and glad to be back with Nokia :)
May pay to manually check for the beta via settings again.
Hey guys even I dint get the beta OTA. Since the first day beta was released for Nokia 6 I am trying for it but not at all getting it. Now waiting desperately for Oreo, anyone has idea by when we would be getting Oreo update.......