Missing items upon delivery and no feedback yet

I bought items from superbalist and upon delivery I noticed that some of my items were missing. I received an email stating that all my items were delivered. I called their customer service and spoke to Conway who confirmed that the other box was damaged or went missing. How? I don't know. I haven't heard from them yet and as a regular client of them I am even considering looking into other online fashion outlets seems like they no longer value their clients.