Fixed: Open tickets in 3 days show right function but wrong number (bug#10805).
Squashed commit of the following:

commit 7590d612c52b75964c616255cb8cca1347650a4d
Author: s7design <otrs@s7designcreative.com>
Date:   Thu Nov 6 15:58:54 2014 +0100

    fixed count number of ticket in customer info