Savan Retailers Private Limited — order not completed

I have order exchange for my mufti navy stripped t - shirt (Order no[protected]-7554401) on 13th sept, but not completed yet. The delivery boy said that product do not match with the photo. But i have ordered a red colour of the said above t - shirt, and they send me a blue colour tshirt. But i liked the blue one also. But the size is bigger. So pls change the size to xl.