I Was Scammed Through Aliexpress

I finished a task using the Aliexpress "do tasks, earn money" link and got a lucrative commission order. I couldn't upload it and I can't get a refund for the money I spent. Could someone with some knowledge lend me a hand? How can I accomplish this task and what steps can I take to receive a refund? I don't know anything about this, so if you have any information, please help me out.