As above, tried to pay both with card and paypal and check out is greyed out, tried doing from email link and on page, oh, but it is still offering me the full price tariff.
tried chat it just goes round in a circular, even the bot for refunds isn't answering,
not a good look...
It can do if it is not an offer that you have to do something to take up, but rather a notification that Now have granted you the offer, and you need do nothing except enjoy it.
So offering you £5 for a few months means that Now are safe from you taking advantage of any £1 offer that might come along.
But if you contact Live Chat, they can get rid of that offer for you, so you can take the better one,
In fairness to Now, I believe they are aware of this problem, and contemplating what they might be able to do to fix it,