+---------------------------------+-----------------------------------------------------------------+
|  Investment Payment Processing  |
+---------------------------------+      
                                                                fail?
                          <Transaction creation is triggered> ─────────►   CREATION_ERROR
                                        ──┬──                                 
                                          │
                                          | success?                          
                                          ▼                                   
                                      INITIALIZE  ──────► CANCELLED            
                                          │                                   
                                          |                                   
                                          ▼                                   
                      FAILED ◄──────  IN PROGRESS ──────► CANCELLED                             
                                          |                                   
                                          |                                   
                                          ▼                                    
                                       RECEIVED ──────+ 
                                          |           | 
                                          |           |────► SENT BACK PENDING ───► SENT BACK SETTLED
                                          ▼           |
                                       SETTLED  ──────+