Do Subway's Reward Points Expire?

[SteelCitySouth]

Now...Lets say you put 5 dollars a week...or $20 a month in a 529. That ends you with $3120 in 13 years without accounting for interest. The average 6 inch sub seams to cost roughly $4.50. That means that without accounting for interest you could gift them $693 subs.

Now that's not laughable.