Bathu order BT734908

I bought my sneakers late November my sneakers we delivered after few days...the same day I returned my sneakers online since I bought them online....the courier guy came then after 2 days I got an email saying they received my returned sneakers...was exchanging them because of the size...now I got an email saying my sneakers will be delivered in 3 to 5 days...got the email on the 19th this month...I tried calling rather email regarding my order but they keep sending me emails saying they received my query....Please help me...