Sent me wrong gas tube - Tuff Zone Gas Tube, Carbine/Pistol/Rifle Length

Purchase a carbine length gas tube and was sent a mid length gas tube instead even thoo tuff zone only has pistol,carbine,and rifle gas tubes the one i was sent was a 11.75 inch gas tube description said carbine length is 9.75 inch the gas tube a was sent was 2 inches too long now needing a carbine length gas tube emailed optics but no luck so far first time they sent me the wrong item and i have ordered more than a big hand full of times with no errors gave three stars but honest mistake hope to hear from optics but really no problem been ordering form optics for about 8 months now with no mistake plus can still use gas tube for future builds