One day only customer service

Ordered a leather jacket. Received item in damaged condition. Although I wear XXL clothes I ordered ***L to be safe. The jacket is tiny. Probably a medium. There is no way I can wear it. I asked for a refund. The item was fetched. It was never communicated to me that a replacement would be sent. Since I asked for a refund the same day I received the item, I expected the refund to be processed. Instead, I received a replacement. What must I do with a jacket fit for a child? Why was I not told they were sending a replacement? Why was I not told they would not refund me? And more importantly, I'm certain the CPA makes provision for a refund in this case. Very disappointed and highly irritated.