Business ProfileforMCM

Ive placed an order on July 26,2023 through the MCM luxury website. And for the black/gold crocs that they were selling for $450. My total was $489.38. Order number is *********, and tracking number ******************. My package was shipped off on the 26th of July and was lost in transit for 2-3 days and I created a claim for the package so *** could locate it. It was scanned as delivered yesterday on 07/02/2023 and around 2:30pm. I arrived home from work around 4:30pm and when I gotten here, my package was no longer here. I am a single mother so there are no other adults in the home but me. And when I asked my neighbors about the package, they say they havent seen it. I reached out to an agent by the name of ******* on 07/03/2023 and around 1:30pm on MCMs website. The agent was very rude and instantly assumed I wanted a refund for my stolen/missing package. I wanted to see if they offered replacements. He then told me to look at my tracking number to see that it was delivered and that I have to speak with someone from **** And kept saying they dont do refunds or replacement orders. So then I asked ******* if my package is insured so I could receive assistance from ***. He doesnt even reply back, just ends the chat on me. Now I am without my package or my money. I would like to know how I could go about getting help for this.