"Coupon Not Subject To Doubling"??

[auntto4]

What exactly does the term 'coupon Not Subject To Doubling" mean?
I bought a tonys pizza at Harps tonight on sale for $1 and used a 50cent coupon that said that on it, but it doubled anyway, so now I am confused. Please explain if you can.

[PSCmom]

I have found that many times it just depends of the stores own policy if they double a "do not double" Q.
My Publix doubles them, but if it says "do not double" my Kroger will not. Check with the store management for their Q policy so you can plan your shopping trips without wondering what your savings will end up being.

[mnm'z]

The code on the q will determine if it doubles or not. If there is a 5 starting the sequence of numbers it will double. If the sequence starts with a 9 it will not double.