Pretty Little Thing tight, ribbed , t-shirt

Rust color tight, ribbed, crop, t-shirt. Says US size 6, and I normally wear 4, but reviews said to order a size up. When I tried it on it was super small. I panicked as to whether or not I'd be living in this shirt the rest of my days, so buyer beware fits more like a XXS. NEVER WORN, only tried on.