I have a standard queen-sized bed. The duvet cover is pretty, however, its way to small, it doesn't reach the top head of my bed and the sides only reach the end of the mattress, there is no hangover as it showes in the picture. I am so dissaponted with this, its like I just threw the money out the window. I would like to send it back, its been laundered and ironed. can I do this?