Some phonecard companies recently changed their terms, effectively increasing costs for customers. One introduced a surcharge of 69 cents once a call passes three minutes, another introduced an 80 cent disconnection fee and another introduced a daily service fee. There are other changes beyond these. The per minute cost is just part of the equation. My point is that newsagents are relied upon to have up to date product knowledge. Unless we get out and research all phone card companies we cannot know.
I am aware of the changes because of my commercial involvement with the people behind the Aussie Phonecard.