Impersonation fraud is a conversation: the fake bank agent establishes who they are, builds urgency, then asks for the thing, and single-message datasets miss that structure. Contributors screenshot the whole exchange with the impersonated identity and the fraudulent request both visible, and are told not to reply; genuine support chats and cropped screenshots are rejected. The task is open only in 11 Southeast Asian countries, where the impersonated parties are typically GCash, Maya, DANA, OVO, Touch 'n Go and the local banks, in local languages, a pattern unlike the US "tax agency" corpora. No channel, target or tactic labels are included; names and request text are legible in every image.