I am guessing (!?!?) that you are a partner trying to integrate to EV your application based on what you are doing. If so you should probably ask this type of question into the EV STEP (Symantec Technology Partner Programme) suport channel for assistance. They specialise and are included in the API / SDK costs to do support for things such as this.
You may well have missed a step, but they should be able to help you out.