oh my god that's awful
I'm lucky in that the Australian postal service is expensive but I've rarely had problems shipping here (mainly just slowness, cost increasing and a couple of lost items over the years). I hope you can resolve it easily and get compensated!
My Tenso and Buyee packages aren't counting down yet until EMS resumes I think but I'm so frustrated that I'm tied to DHL or Sea Mail only. If I did one of those bulk lots of random crap I'd ship it via sea and not be too worried but I'm paranoid shipping expensive stuff without tracking or insurance lol
If anyone really wanted the tote bag from the DVD/BR release but didn't want to buy the whole package, there's one on Mercari Japan:
https://buyee.jp/mercari/item/m54591590443