How about "No"?
How about "No"?
Once upon a time, Three were trying to build up market share by offering pretty damn good value SIM-only contracts, including the completely killer feature of "Roam Like Home". I was with them for a good number of years, everyone was happy.
Then they got bored and greedy, killed "Roam Like Home" for new contracts, and made up some complete bullshit guff about how "we can't offer you your current contract any more" (funny how you were perfectly happy for it to keep rolling for years and years) and screwed over existing loyal customers, too, giving only the "option" (hah) of "we'll forcibly convert you to a new shitty non-roaming-inclusive contract, whether you like it or not, by a certain date, or you can pick from any of teh wonderfule super exciting [sic] other new contracts in our new crappier range…".
Fortunately by then, "PAC code by text message" was already in place, so I didn't even have to endure the hell of phoning a customer contact cesspit to escape, just send a text (one of Ofcom's genuinely good improvements for customers).
Silly Three: if they had allowed me to continue with my then-existing contract (or maybe even increased the price a little bit, if they had really felt they needed to), I'd probably still be a customer, several years later. Their loss. I'm pretty sure I wasn't the only person who left in disgust because of this.
As for Vodafone, I've always got the vibe that they were "business focussed" (ahem) and thereby existed to always fleece victims for as much as they could possibly get…
(And don't start me on BTee, who are sadly now also money-grabbing leeches (BT landlines always were: "Hey, we're now going to charge you extra for the line rental that we have already billed you for and that you have already paid for ahead of time (How that was ever permitted, I don't know?!)). One upon a time, both Orange and (particularly) One2One/T-Mobile offered a good range of contracts depending on your budget and needed usage allowances, etc. But almost as soon as they merged themselves together, the self-enshittification all too predictably began (sadly), and then of course BT made it worse.)
moral: Go to MoneySavingExpert, look for the best deal suitable for you, and port, port, port, if that deal later becomes uncompetitive. That's how capitalism is supposed to work, right?