SAP BO 3.1, Report does not pull the right numbers from Universe/Database

Hi BO experts,

I have one derived table which im using to develop my report.

Table  A

Code- 10 means ----sent mails

code- 12 means-- failed mails

code-13 means--just a txt message

1- we want to count all emails and show emails address  in table A where "Type"= 'Emails' and in the same table we want to add new colum where we want to count all the emails which have code='12' and Type= 'Emails' from table A

this is what we expecting

Emails table

Now problem is in WEB 3.1 when we drag the object for failed email  in the above table (with in specific date) it shows only i count regardless of date if there is atleast when failed email in table.

for example:- from Emails table where email address is abc@yahoo.com . i see total emails sent are 3 but failed email 1, instead of showing 2.

our Database is DB2.

what i'm doing wrong? why im not able to show correct numbers of failed emails?

thanks a lot

imtiaz