I seem to find a very weird deal on the virgin media website. I wanted to upgrade my current plan and found this unlimited data plan for £25 monthly and it allows me to deduct a monthly tarriff discount for £21.10, lowering down the monthly fee to £3.90. It seems too good to be true and I'd like to know the fine prints to it, which I didn't seem to find a lot of information about it.
You're actually right: I've just tried now and I couldn't purchase the same deal anymore. But earlier today it gave me a whole lot of monthly discount options from as low as £2 to as high as £21 which was really weird. I closed the browser 3x and tried to refill my basket but it was still giving me the options so I went for it. If this turns out to be a glitch and they'll take it back then I'll switch back to my original sim plan and original budget which is the £13 for 15gb and probably upgrade it to the new £13 for 36gb instead.