This looks to be one of the best promotions I think Tastecard have ever run.
Not only will you get a 90 Day Tastecard for just £1 (a bargain on its own) but Tastecard will also donate £5 to Mary Meals for every £1 Tastecard bought.
So even if you don't use, your £1 has given £5 to a very worth cause in its own right. Just signup and cancel.
What more incentive could you want?
By the way don't forget to cancel your card once you get it, as they will automatically renew it after your 90 Days trial is up. Cancellation is easy now, and you can do it online here..
You can cancel as soon as you get the card, it remains valid for 90 days no matter when you cancel.https://www.tastecard.co.uk/mytastecard/cancel