We can't say, because VM's sales and retentions team have unknowable latitude on pricing, and perhaps access to different deals between the two teams, and possibly access to pricing that varies over time. If you're speaking to retentions, they have considerable scope, but they are (or should be) incentivised to retain customers at the minimum discount, meaning that different agents may well offer different deals in response to how they are working towards bonus targets. That also means you can't leave a deal on the table to consider it - you agree it there and then, or you take your chances that when you phone again you might not be offered as good a deal, as in this case.
That does also mean you can call a third time and try for a different outcome, but to get a better outcome you will almost certainly need to say that the deal isn't attractive and unless they do a lot better you'll cancel the lot and take all your business to Sky/BT. Take a look at Uswitch or similar to see what new customer deals those companies are offering, so that you know the score, and tell that to the agent, see how that goes. Keep it cheerful and polite, they're doing their job, and this is a bit of a game. You need to outflank them so that you get offered their best price, and remember that customer loyalty or any perception of "fairness" counts for nothing - all that matters is whether they believe you'll leave, and the offers you can get from other companies.
