Buy one iTunes gift card, get one 1/2 price at Sanity

Sanity are offering a decent iTunes promotion until the 25th March (unconfirmed). Purchase one iTunes gift card and get one of equal or lesser value for half price. That’s a saving of up to 25% off. This is our best promotion going at the moment.

Out tipster, Elite, thinks that the special is valid until the 25th March. Can anyone confirm this?