Can confirm vodafone’s data network is abismal, I have vodafone for personal, and ee for work, though ee sucks at all sorts of other things, the data coverage blows vodafone away.
I can basically get good data signal in 2 towns, both 10 miles or more away from my house, elsewhere, it’s not worth trying to use generally. I’d move network, but vodafone’s phone signal is generally better than the others in this area, so it’s a catch 22.
Doesn’t help that my phone (Galaxy S3) is also shite, not registering on network an awful lot of the time, have had a new phone, and 4 sim cards now………..