White duvet cover with pale blue piping

I lost my white duvet cover set with pale blue piping from the Linen Loft line. It's a queen-size duvet cover, bright white with a neat row of pale blue piping along the edges, and there's a tiny coffee stain near the bottom corner from last weekend. I think I last had it yesterday around 3pm when I was changing my bed at my flat on High Street in Colchester, Essex, near the Co-op and the bus stop. It has sentimental value because it was a gift from my late grandmother, and I'm really hoping to get it back.