Here they're offering unlimited data for 16 pounds: https://smarty.co.uk/plans/unlimited?vc=15Mth16UnlJun24Aff
But as soon as I click it, it goes to my account and it tells me I have to pay 20? I think this is because I'm already a Smarty customer, and it looks like this offer is for non-customers then. Why can't I have the discount? It makes no sense treating customers worse than non-customers.
