Corrugated Plastic

hey guys....so i went to fedex and the lady there was like no we dont sell corrugated plastic and i was like r u sure and she was like yeah....so i started to walk out and i was like theres no way they dont so i went back and i was like i need corrugated plastic how can i buy it....she called over this other guy and he was like u can just buy it and i was like lol thanks so yeah i have it....it was $20.20 for 2 15" x 24" pieces