After almost 6 months, this offer finally returns. For those who have not tried premium already. $11.99/month afterwards, though you can cancel anytime. Neither prepaid cards nor Spotify gift cards can be used as a valid payment method for this offer.
Terms and Conditions
Previous offer from June 2017
Previous offer from November 2016
Previous offer from June 2016
Previous offer from November 2015
Armin65 via OzBargain