High Waist A-Form Maxi Skirt with Slit

I couldn't figure out if the slit of the product is on the side or the back; when I wear it with the tag at my back, the slit stays at the back. The main reason for my return is that it's too thick, the waistband is very bulky, and unfortunately, it can't be considered a summer product.

The waistband and the lower part are not the same shade of white, and the lining is poorly stitched