curl --request POST \
  --url https://api.zappfy.io/contact/remove \
  --header 'Content-Type: application/json' \
  --header 'token: <api-key>' \
  --data '
{
  "phone": "<string>"
}
'

{
  "success": true,
  "message": "Contato removido com sucesso",
  "removed_contact": {
    "jid": "5511999999999@s.whatsapp.net",
    "phone": "5511999999999"
  }
}