The address listed on their website is a single family residence on a residential street with a 5'ver parked next to the garage according to Google Maps sat view. That suggests to me that it's likely a one person online shop that uses drop shipments from the vendors for order fulfillment. Nothing wrong with that in itself, but if anything happens to that one person, then everything stops. It could be as simple as them being away on an RV trip and they've lost Internet access, or it could be much worse. If anyone on the forum is located near 7379 Lakeside Dr, Riverside, CA, perhaps they could stop by for you and inquire. And notifying your credit card company of the non-delivery, no contact status is not a bad idea either.
7379 Lakeside Dr, Riverside, CA