11.1 Collections and Cash Letters This section contains the following topics: MT 400 Advice of Payment MT 410 Acknowledgement MT 412 Advice of Acceptance MT 416 Advice of Non-Payment/Non-Acceptance MT 420 Tracer MT 422 Advice of Fate and Request for Instructions MT 750 Advice of Discrepancy MT 430 Amendment of Instructions MT 400 Advice of Payment MT 410 Acknowledgement MT 412 Advice of Acceptance MT 416 Advice of Non-Payment/Non-Acceptance MT 420 Tracer MT 422 Advice of Fate and Request for Instructions MT 750 Advice of Discrepancy MT 430 Amendment of Instructions Parent topic: Processing SWIFT Messages