He still slipped up on the second attempt - he asked the scammer for the out of hours number, rather than using the number on his card - I guarantee the robomen

He still slipped up on the second attempt - he asked the scammer for the out of hours number, rather than using the number on his card - I guarantee the robomenu will have a out of hours option. Maybe he hadn't intended to call that number on the assumption it was his CU, but it reads like he did, and only realised it was another scammer because of the anger.