WhatsApp is where you talk. kwataverse is where you get paid.
Show the code
https://kwataverse.com/p/naddr1qq9hqctvd5kk76tv956kcq3qhnhstmqzftzwmnjqd7rn5vqgm6p7wlh8fxagup2sg3jqv58rljfsxpqqqpmvyaxdeuh
Point a camera at it. A neighbour across a stall can too.