WhatsApp is where you talk. kwataverse is where you get paid.
Show the code
https://kwataverse.com/p/naddr1qq9kk6tywvkkzemzv9jxzq3q0ylwedehjt4ttwcenp3zgpt3dz9djxm6c7awhjnfvtetvsd2aaxsxpqqqpmvykjqgxg
Point a camera at it. A neighbour across a stall can too.