I lost my SD Chip last week at the station and am already back in USA

I’m soooo devastated I lost it because it had all my memories of the last moments of me and my dog before she went to sleep. I’m soooo sad I will never have the footage of seeing us together again. I don’t know exactly what station it’s called. All I know is I was trying to take Shinkansen from Kyoto to Tokyo and bought the ticket at the little office where you tap your IC card and I was shuffling things around in my bag. I think that was when I lost it. Now that I’m in USA I can’t call their number. And I tried getting on a website that will tell you lost and found in certain cities but that website won’t load. I’m sooooo sad.