Never Worn Designer Two Piece

I purchased this set from Fashjonn on IG a couple years ago for a video shoot. But it just didn’t suit my body type. I can’t remember if I tried to send it back or not cause it’s been so long ago now, but I do remember contacting them about the sizing being off and they sent me this one that still was to small for me, and customer service wasn’t much help after that. There aren’t any tags. I’m not sure if that’s something that has changed now that they are a bigger brand. But this is in fact who I purchased it from. I thought the top was going to be slouchy but it was to tight for my body type I guess. I think this would fit better on someone who is a size XXS, XS, or S. The material is very thick, cord sweater w/ stretch.