Don't overestimate how shyte Japanese websites can be.
Here is a link to massive store that sells everything from booze to washing machines, toys, electronics.
https://www.biccamera.co.jp/shopguide/report/leaflet/index.html?ref=shop-foot
I can't tell you how painful it was last year trying to set up a web domain and email system for my father in-law.
That being said, I am surprised there isn't a way of contacting them on LINE (a japanese version of WhatsApp).