Terrible signal in London, couldn't ever use my phone. Never had an issue with EE or Vodafone. Customer service unhelpful and dismissive when asked if there was anything I could do to fix it with my phone. Left as soon as I could after 12 months... Don't bother wasting your time, go elsewhere.
Edit: Reply from Three links to a page mentioning a web chat, but I don't see an option to start it/talk to anyone.
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