Received Lint Roller Instead Of A Phone

I was supposed to have received a phone but instead a lint roller was delivered to me. After contacting Amazon support I was given no other option but to internationally ship a LINT ROLLER back to America. The item said to have been delivered successfully on September 4th. I not only informed Amazon of the international shipping which cost me several hundred dollars, I provided them the tracking number as well informed then when I received notice that it had arrived at its destination. I was told that my return status would be updated, it never was. I was told that I would no longer be charged on the payment plan and would be refunded, this also never happened. 3 days ago I was charged again. I have now spent several hundred US dollars into an item that I never received and have been lied to and misled by customer service at every turn. After informing them that I was still charged when it was promised that I would not be, I was told I would be contacted by a specialized team in 24 hours, that was 2 days ago. I am now at my wits end and struggling to find any solution.