Stacking ?

I just received an amazing ROAK from iluvfreebs and am going to try stacking at ld for the first time today. I have one quick question if the coupons say manufacturers coupons limit 1 per costumer does that mean I can only use one coupon on the product?
Thanks

Nope. Stacking you can use one of each UPC unless the coupon states no stacking or cannot be combined with any other coupons. Good luck stacking!