Shell script not exiting sub-menu, help!

I've got a problem with a shell script I'm writing in that it does everything its supposed to do except it won't exit from sub menus nor will it quit from the script completely when in a sub menu.

Here is what I've done so far. I've redacted parts of it because of work confidentiality:

#!/bin/bash



#Now for the main menu...

while :
do

    clear
    cat<<EOF
    ======================================
    DCO Toolbox 0.5a
    ======================================
    If it aint broke, fix it till it is
    --------------------------------------
    Welcome!

    Please choose which site you're in:

    A new or existing site A   (1) 
    A new or existing site B      (2)
    --------------------------------------

EOF
(   read -n1 -s
     case "$REPLY" in
    "1") echo "Going to that menu now"
    sleep 1
    while :
do
    clear
    cat<<EOF
    ======================================
    DCO Toolbox 0.5a
    =======================================
    SITE A MENU
    ---------------------------------------
    Please make a choice:

    Change DA                   (1)
    Change Site                 (2)
    Change Rack number          (3)
    Test DA port connectivity   (4)
    Test DA port light levels   (5)
    Check DS port order         (6)
    Check DS LLDP neighbors     (7)
                                (Q)uit
    ---------------------------------------

EOF
(    read -n1 -s
case "$REPLY" in
    "1") echo "Lets change that DA/DS, enter a new one: "
    read da 
    echo "Setting that now.."
    ;;
    "2") echo "Lets change the site name, enter a new one: "
    read site 
    echo "Setting that now.."
    ;;
    "3") echo "Lets change the target rack, enter a new one: "
    read rack 
    echo "Setting that now.."
    ;;
    "4") echo "Testing DA port connectivity..."
    sshpass -p $password ssh $username@$da.$site "sh int et21/1-24/4 status"
    read -rsp $'Press any key to continue...\n' -n1 key
    ;;
    "5") echo "Testing DA port light levels..."
    sshpass -p $password ssh $username@$da.$site "sh int et21/1-24/4 transceiver"
    read -rsp $'Press any key to continue...\n' -n1 key
    ;;
    "6") 
    sshpass -p $password ssh $username@ds01.$site "sh int desc | inc $rack"
    sshpass -p $password ssh $username@ds02.$site "sh int desc | inc $rack" 
    sshpass -p $password ssh $username@ds03.$site "sh int desc | inc $rack" 
    sshpass -p $password ssh $username@ds04.$site "sh int desc | inc $rack" 
    read -rsp $'Press any key to continue...\n' -n1 key
    ;;
    "7") echo "Checking DS LLDP neighbors..."
    sshpass -p $password ssh $username@ds01.$site "sh lldp neigh | inc $rack" 
    sshpass -p $password ssh $username@ds02.$site "sh lldp neigh | inc $rack" 
    sshpass -p $password ssh $username@ds03.$site "sh lldp neigh | inc $rack" 
    sshpass -p $password ssh $username@ds04.$site "sh lldp neigh | inc $rack" 
    read -rsp $'Press any key to continue...\n' -n1 key

    ;;
    "Q") break 2                                ;;
    "q") echo -e $blinkred"ERROR: "$red"Whoa! Case sensitive, mate!" $none  ;;
    * ) echo "Sorry, invalid option!"        ;;
    esac

    sleep 1 ) | tee $today.log
done
break
    ;;
    "2") echo "Going to that menu now"
    sleep 1
    while :
do
    clear
    cat<<EOF
    ======================================
    DCO Toolbox 0.5a
    =======================================
    SITE B MENU
    ---------------------------------------
    Please make a choice:

    Change Device                   (1)
    Change Site                     (2)
    Change Rack number              (3)
    Test port connectivity          (4)
    Test port light levels          (5)
    Check port order                (6)
    Check LLDP neighbors            (7)
                                    (Q)uit
    ---------------------------------------

EOF
(    read -n1 -s
    case "$REPLY" in
    "1") echo "Lets change that DA/DS, enter a new one: "
    read da 
    echo "Setting that now.."
    ;;
    "2") echo "Lets change the site name, enter a new one: "
    read site 
    echo "Setting that now.."
    ;;
    "3") echo "Lets change the target rack, enter a new one: "
    read rack 
    echo "Setting that now.."
    ;;
    "4") echo "Testing DA port connectivity..."
    sshpass -p $password ssh $username@$da.$site "sh int et21/1-24/4 status"
    read -rsp $'Press any key to continue...\n' -n1 key
    ;;
    "5") echo "Testing DA port light levels..."
    sshpass -p $password ssh $username@$da.$site "sh int et21/1-24/4 transceiver"
    read -rsp $'Press any key to continue...\n' -n1 key
    ;;
    "6") 
    sshpass -p $password ssh $username@ds01.$site "sh int desc | inc $rack"
    sshpass -p $password ssh $username@ds02.$site "sh int desc | inc $rack" 
    sshpass -p $password ssh $username@ds03.$site "sh int desc | inc $rack" 
    sshpass -p $password ssh $username@ds04.$site "sh int desc | inc $rack" 
    read -rsp $'Press any key to continue...\n' -n1 key
    ;;
    "7") echo "Checking DS LLDP neighbors..."
    sshpass -p $password ssh $username@ds01.$site "sh lldp neigh | inc $rack" 
    sshpass -p $password ssh $username@ds02.$site "sh lldp neigh | inc $rack" 
    sshpass -p $password ssh $username@ds03.$site "sh lldp neigh | inc $rack" 
    sshpass -p $password ssh $username@ds04.$site "sh lldp neigh | inc $rack" 
    read -rsp $'Press any key to continue...\n' -n1 key

    ;;
    "Q") break 2                                ;;
    "q") echo -e $blinkred"ERROR: "$red"Whoa! Case sensitive, mate!" $none  ;;
    * ) echo "Sorry, invalid option!"        ;;
    esac

    sleep 1 ) | tee $today.log
done
break
    ;;
esac
)
done

I've got one main menu and two sub-menus:

Main menu
 |
 |_____ Site A Sub Menu
 |
 |_____ Site B Sub Menu

With an option (Q) to quit back to the main menu but I can't seem to be able to quit back to the Main menu. I've tried:

break 2 ;;

And:

return ;;

But both don't seem to work at all. The script just loops back around within the same sub-shell.

Any help would be very gratefully received. Thanks!