DNA Panorama Genetic Test

I was given the box to have my blood drawn last Monday for the genetic panorama blood test. The one that tests for any abnormalities and can determine the sex of the child. My doctor said the gender will be the same because my twins are identical but the company that runs the test ended up cancelling it because they cannot run it on twin gestations. The nurse said that none of them can determine the sex on a twin gestation but she has a company that will do the genetic test. So I went in for another blood draw and I have an NT Scan scheduled on the 6th but I am a little bummed I won't get the gender yet! I'm 40 years old so both tests are covered by insurance thank goodness. Anyone else have the same disappointment?