clarify what happens on block

doc/flows/kyc-deposit.tex

@@ -55,8 +55,8 @@
 \end{tikzpicture}
   \end{center}
   \caption{Regulatory process when depositing digital cash into a bank
-    account.  When the transfer is denied, the money is returned to the
-    originating wallet.}
+    account.  When the transfer is denied, the money is held in escrow
+    until authorities authorize the transfer.}
 \end{figure}
 
 

doc/flows/kyc-pull.tex

@@ -63,7 +63,10 @@
   \end{center}
   \caption{Regulatory process when receiving payments from another wallet.
     The threshold depends on the risk profile from the KYC process.
-    When invoicing is denied the wallet cannot generate the invoice.}
+    When KYC thresholds would be passed, the receiving wallet cannot
+    generate a valid invoice until it has provided the KYC data.
+    When a transfer is denied by AML staff, the money is held in escrow
+    until authorities authorize the transfer.}
 \end{figure}
 
 

doc/flows/kyc-push.tex

@@ -63,8 +63,8 @@
   \end{center}
   \caption{Regulatory process when receiving payments from another wallet.
     The threshold depends on the risk profile from the KYC process.
-    When the transfer is denied the money is (eventually) returned to
-    the originating wallet.}
+    When the transfer is denied, the money is held in escrow
+    until authorities authorize the transfer.}
 \end{figure}