Does anyone know what these coupons are??

I saw in the petsmart -
Only says on the blue IAMS Weight Management 50LB bag for pups 1+years - $50 in Iams & petsmart coupon savings!!
If you use your petperks card - you save some bucks (about $4-$5) off the bag when you purchase - the cost after petperks card used about $41.


I only have 1 pup and he can not eat a 50 LBS bag of food too quick!


Thanks