Just bought ours yesterday at M&S (Mancherster branch) and got $1.617. Didn't have a charge card, just used switch, as there were signs saying some credit cards would incurr a charge (I suppose it's like a cash advance).
Also, it's nice not having to order it like you do at banks, best rate aswell, as far as I can tell!
The holiday always seems that bit nearer when you've got your money!
Ian