Lace Strapless Wedding Dress w/ Matching Sleeves

Strapless lace wedding dress with deep v in the center and boning/corset like top, zipper back Lace on top with tan fabric below- full coverage, not sheer Separate matching sleeves New, never worn except for the listing pictures I am typically XS/S in clothes. Bottom fits but top is too big/doesn’t stay up on me. Maybe fits more like a medium on top or if you’re my size, would need to get it taken in. It was supposed to be custom to my measurements but doesn’t fit so it’s hard to say exactly what size this is… message me if you want details on my measurements for reference