Add voucher code looks like account number error message

Author: Rawa

android/lib/resource/src/main/res/values/strings.xml

@@ -33,6 +33,7 @@
     <string name="redeem">Redeem</string>
     <string name="invalid_voucher">Voucher code is invalid.</string>
     <string name="voucher_already_used">Voucher code has already been used.</string>
+    <string name="voucher_is_account_number">Looks like you entered an account number</string>
     <string name="error_occurred">An error occurred.</string>
     <string name="settings">Settings</string>
     <string name="no_internet_connection">No internet connection</string>

gui/locales/messages.pot

@@ -2333,6 +2333,9 @@ msgstr ""
 msgid "Locations were changed for \"%s\""
 msgstr ""
 
+msgid "Looks like you entered an account number"
+msgstr ""
+
 msgid "Makes sure the device is always on the VPN tunnel."
 msgstr ""