I think the best way to report this is their https://btcmap.org/verify-location form which automatically creates a github issue.
nostr:npub1864jglrrhv6alguwql9pqtmd5296nww5dpcewapmmcazk8vq4mks0tt2tq Just went to this shop in Icon Siam and it doesn’t accept Bitcoin (yet, or problems with system😅) #Siamstr
Discussion
Could be but my ‘not dev’ mind didn’t think about this 🤣 And now I got a nice interaction with the merchant that they will add it soon 🔥