Hi,
It used to be that a $100 GoPhone refill expired after 365 days.
This information no longer seems to be available anywhere on the AT&T website.
Does a $100 refill still expire after 365 days, or does every refill expire after 30 days now?
That means the cheapest option is now to refill $10 every month, or $120 per year, so a 20% price increase.