POOR COMMUNICATION SKILLS & INABILITY TO DELIVER

I placed order for a 2piece dye pink short pants and top February 2021. My purchase as delivered on the 17th of February 2021 until I sent back the order due to unforseen circumstances. The order was picked up and I waited for my refund. I ended up calling them and was sent from pillar to post, from one department to another, being given multiple email addresses but still did not get help for my refund. 4 months later of trying to communicate with them, I was told that between one of the two items, one of them had a tag removed which means they cannot refund me but rather send it back to me. I had no problem with that but still the item was not sent back to me. Made various phone calls regarding this and I was assured it would be delivered to me but nothing. I sent multiple emails and made countless phone calls but my complaints fell on deaf ears. As I'm composing this email, today is the 13th of January 2022. It has now been 11 months fighting the same battle with Style Mode and still have not received help. How do we go about this?