So sorry for your loss. I just started over last 6 months my 1st reef tank. B4 that FW & planted tanks for over 35years. Learned some important points when ordering livestock online - fish, plants, FW inverts. 1. NEVER order livestock between Thanksgiving and New Years day. Things WILL go wrong, Murphy's law. 2. Always check for REVIEWS on the person/company your buying your livestock from. If you can't find any then spend your hard earned money elsewhere. 3. Weather : if anticipating extreme cold/heat, hold off on ordering until conditions normalize. 4. If possible look for a LFS that you can trust in your area even if it's a 2+ hr. drive, it's better than a 3-5+ days in a shipping container. Fortunately here in NJ there are several reliable SW fish & corals LFS's all within an hour or so driving distance.
*Regardless of the fact UPS screwed up the person you bought the fish from appears he did not properly pack the fish. I would definitely demand a refund!! Good Luck.