Fashion Nova — order on november 26th

I ordered the Sabrina tie waist pants on cyber Monday. It took them two weeks to ship my order. When I received my order, I discovered that the bag they came in said small, but the actual pants are a large. I emailed fashion Nova 4 times and all I get is a stupid automated email and emails about their shipping being good again. I want the actual size I paid for or I won't be ordering from this company again.