Casual bodycon dress

I got this online from WANTMYLOOK and it did not fit my body the way it was supposed to. I ordered a medium and they sent me a large. I tried to get it altered to fit me better but it just did not work out. I love the style but unfortunately it does not look the way I wanted it to... supposed to be skin tight/ fitted. I have NEVER worn this besides trying it on for alterations. Brand new, perfect condition. Material is suede.