I need to vent....

I'm in the bathroom at work crying, I'm so done with the Ob office NOT listening to me!!! I had a 1 hour glucose test today just got a call saying they need to book me for a 3 hour one. Problem is I ALREADY DID A 3 HOUR ONE A FEW MONTHS AGO from my old Obgyn. I've told this new office numerous of times that I already did a three hour but I'd agree to one more one hour one. Now they are saying they don't care what I did in the beginning months. I told them I'm not doing another 3 hour one, cause I passed out on the previous one.