Good offers but the worst services. I've been with Vodafone for 2 and a half years so far. They give you great deals, but then let you down. The customer service is the worst I've seen. I got a sim replacement and it took 4 days the get activated (which normally it should take max. 15 min). Further on, I am waiting for a proof of purchase for already 10 days, but I haven't got one and I am without a phone as is needed for my insurance company to be processed. Also, 1-2 weeks ago a £375 bill popped up in my account out of nowhere. I needed like 3 days to sort it out. There are many more other things on which I cannot remember.