Lost package, won't respond

I ordered a holiday gift on 10 December, the tracking said it was arriving on 12 Dec. The package never arrived. I had tried emailing and their chatbot to inquire about the package, but no response. I was able to get a hold of the local branch and they told me there were delays, but that I would get the package by the 21st. The package did not arrive. When I called after the holidays they said they used a 3rd party courier and that the courier refused to deliver the packages. They said they would call with an update, but that the package is probably lost. They have never got back to me. Extremely irresponsible service, not sure how to get my money back as I had ordered through Livingseeds who uses fastway couriers, I would never use them!