diff --git a/ddbank.py b/ddbank.py
index 210a946..1f430c1 100755
--- a/ddbank.py
+++ b/ddbank.py
@@ -3,6 +3,23 @@ import sqlite3
 import os
 clear = lambda: os.system('clear')
 
+def return_31(wrgUser,a):
+    clear()
+    print(f"31: User {wrgUser} not found. Select menu 3 to see a complete list of users.")
+    manageBankmenu(a)
+    
+def userCheck(use,a):
+    connDb = sqlite3.connect(a)
+    cur = connDb.cursor()
+    usrlist = cur.execute("SELECT username FROM account;").fetchall()
+    for i in usrlist:
+        i = str(i)[2:-3]
+        userCheck.usrtst = "fail"
+        if use == i:
+            userCheck.usrtst = "pass"
+    if userCheck.usrtst != "pass":
+        return_31(use,a)
+
 def transfer(a):
     clear()
     print()
@@ -10,18 +27,26 @@ def transfer(a):
     cur = connDb.cursor()
     userIn = input('Amount to transfer: $')
     fromUser = input('From user: ')
+   # userQuery = cur.execute("SELECT username FROM account;").fetchall()[0:]
+   # matchs = userQuery
+   # if userIn != for i in matchs:
+   #       print(i[0])
+    userCheck(fromUser,a)
     toUser = input('To user: ')
+    userCheck(toUser,a)
     fromId = cur.execute("SELECT id FROM account where username=?", (fromUser, )).fetchone()[0]
     toId = cur.execute("SELECT id FROM account where username=?", (toUser, )).fetchone()[0]
-    prevFrom = cur.execute("SELECT balance from balance where id=?", (fromId, )).fetchone()[0]
-    prevTo = cur.execute("SELECT balance from balance where id=?", (toId, )).fetchone()[0]
-    #if prev
-    cur.execute("UPDATE balance SET balance=(?-?) WHERE id=?", (prevFrom, userIn, fromId, ))
-    cur.execute("UPDATE balance SET balance=(?+?) WHERE id=?", (prevTo, userIn, toId, ))
-    connDb.commit()
-    connDb.close()
-    clear()
-    print(f'Transfered ${userIn} from {fromUser} to {toUser}. ')
+    prevFrom = cur.execute("SELECT balance from balance1 where id=?", (fromId, )).fetchone()[0]
+    prevTo = cur.execute("SELECT balance from balance1 where id=?", (toId, )).fetchone()[0]
+    if int(prevFrom) < int(userIn):
+        print(f' {fromUser} has insufficient funds to accommodate this transfer.')
+    else:
+        cur.execute("UPDATE balance1 SET balance=(?-?) WHERE id=?", (prevFrom, userIn, fromId, ))
+        cur.execute("UPDATE balance1 SET balance=(?+?) WHERE id=?", (prevTo, userIn, toId, ))
+        connDb.commit()
+        connDb.close()
+        clear()
+        print(f'Transfered ${userIn} from {fromUser} to {toUser}. ')
     print()
     manBankin(a)
 
@@ -31,31 +56,30 @@ def deposit(a):
     connDb = sqlite3.connect(a)
     cur = connDb.cursor()
     withUser = input("User?: ")
-    userIn = int(input(f'{withUser}: Amount to deposit: '))
+    userIn = input(f'{withUser}: Amount to deposit: ')
     cur.execute("SELECT id FROM account where username=?", (withUser, ))
     userId = cur.fetchone()[0]
-    cur.execute("SELECT balance from balance where id=?", (userId, ))
+    cur.execute("SELECT balance from balance1 where id=?", (userId, ))
     prevAmt = cur.fetchone()[0]
-    cur.execute("UPDATE balance SET balance=(?+?) WHERE id=?", (prevAmt, userIn, userId, ))
+    cur.execute("UPDATE balance1 SET balance=(?+?) WHERE id=?", (prevAmt, userIn, userId, ))
     connDb.commit()
     connDb.close()
 
 def withdraw(a):
-    clear()
     print('Withdraw: ')
     connDb = sqlite3.connect(a)
     cur = connDb.cursor()
     withUser = input("User?: ")
-    userIn = int(input(f'{withUser}: Amount to withdraw: '))
+    userIn = input(f'{withUser}: Amount to withdraw: ')
     cur.execute("SELECT id FROM account where username=?", (withUser, ))
     userId = cur.fetchone()[0]
-    cur.execute("SELECT balance from balance where id=?", (userId, ))
+    cur.execute("SELECT balance from balance1 where id=?", (userId, ))
     prevAmt = cur.fetchone()[0]
-    if (prevAmt - userIn) < 0:
+    if int(prevAmt) - int(userIn) < 0:
         print("*** User cannot have a negative balance. ")
         withdraw(a)
     else:
-        cur.execute("UPDATE balance SET balance=(?-?) WHERE id=?", (prevAmt, userIn, userId, ))
+        cur.execute("UPDATE balance1 SET balance=(?-?) WHERE id=?", (prevAmt, userIn, userId, ))
         connDb.commit()
         connDb.close()
 
@@ -125,7 +149,8 @@ def addUser(a):
     cur = connDb.cursor()
     userIn = input('What user would you like to add? ')
     cur.execute("INSERT INTO account (username,active) VALUES(?,1)", (userIn,))
-    cur.execute("INSERT INTO balance (balance) VALUES(0.00)")
+    cur.execute("INSERT INTO balance1 (balance) VALUES(0)")
+    cur.execute("INSERT INTO balance2 (balance) VALUES(0)")
     cur.execute("INSERT INTO banktrans (username,amount) VALUES(?,0.00)", (userIn,))
     connDb.commit()
     connDb.close()
@@ -136,7 +161,6 @@ def addUser(a):
     print()
 
 def manageBankmenu(a):
-    clear()
     bankNam = a.split(".")[0]
     print(f'You are managing the {bankNam} bank. ')
     print()
@@ -187,9 +211,13 @@ def addBank():
          (ID INTEGER PRIMARY KEY AUTOINCREMENT,
          USERNAME           TEXT    NOT NULL,
          TIMESTAMP  DATETIME DEFAULT CURRENT_TIMESTAMP, ACTIVE BOOLEAN NOT NULL);''')
-    connDb.execute('''CREATE TABLE balance
+    connDb.execute('''CREATE TABLE balance1
          (ID INTEGER PRIMARY KEY AUTOINCREMENT,
-         BALANCE           DOUBLE    CHECK(BALANCE >= 0),
+         BALANCE           INTEGER    CHECK(BALANCE >= 0),
+         TIMESTAMP  DATETIME DEFAULT CURRENT_TIMESTAMP);''')
+    connDb.execute('''CREATE TABLE balance2
+         (ID INTEGER PRIMARY KEY AUTOINCREMENT,
+         BALANCE           INTEGER    CHECK(BALANCE >= 0),
          TIMESTAMP  DATETIME DEFAULT CURRENT_TIMESTAMP);''')
     connDb.execute('''CREATE TABLE banktrans
          (ID INTEGER PRIMARY KEY,
@@ -226,15 +254,20 @@ def mainFunc():
             """) 
         mainOption = input("Choose an option: ")
         if mainOption == '1':
+            clear()
             selectBank()
         elif mainOption == '2':
+            clear()
             addBank()
         elif mainOption == '3':
+            clear()
             listBank()
         elif mainOption == '4':
+            clear()
             print('Place function here.')
         elif mainOption == 'Q' or mainOption == 'q':
-            break
+            exit()
+            
         else:
             print()
             print('*** Option not understood. Please try again.')