You need to pass 2 check rides to get a FAA Commercial Instrument in order to operate an aircraft commercially.
Even though you got a Private IR SE & ME, your license doesn't have the mention: U.S. Test Passed, meaning that you won't be able to get the IR on your commercial unless you actually pass the test.
So, you'll have to do 2 checkrides.
1.Instrument Rating Checkride
2.Commercial-ME Checkride