Probably a typo, I'd be willing to bet it's $99.99 for 300 minutes. But quite a discrepancy between 60 and 100 minutes which makes buying 60 at a time much better than any of the other packages unless again, it's supposed to be $24.99 which might be more in line with their price structure.I normally use my cellphone, but I like to have some minutes available for the built in OnStar phone.
Checking the prices right now, something is weird:
On the Pre-Paid minutes the prices are as follows:
60 minutes for $4.99
100 minutes for $39.99
300 minutes for $9.99
1000 minutes for $299.99
(minutes expire after 12 months.)