Need VLOOKUP for multiple criteria

Dear experts,
In the following work sheet (this has VB also running behind), I need the following;

#01
The cell U6 returns the value (start up days) as per the the table in "categories" sheet(S2 to P9).

However, I need to combine another criteria to this using the table in categories sheet (R12 to S13). Accordingly, the resulted value in U6 should be changed. Selection criteria is in column I6 (RPT or NEW).

#02

The cell V6 should calculates the no of days the production run (example: in row 6>>> 7 days(days run) - from May 17 to May 24). Need a formula to handle this condition.


Thanks in advance
Anuruddha