Dell sent me a wrong sleeve

       Hello, I'm a fan of alienware. I bought alienware 51m-R2, but it's too big, so I bought an alien area-51m 17.3 "sleeve so I can put it in, but when I got it, I found that Dell sent me an M17 fabric sleeve. Its label is printed with alien area-51m 17.3 "sleeve, but the content is completely wrong. There is no number 51 on the reflection pattern. And It doesn't fit my 51m-R2 at all.  can anyone tell me how to solve this problem?Wrong label

Wrong reflection pattern

ALIENWARE AREA-51M 17.3” SLEEVE