Why do Dr's offices hate me?

Is it just me that they never call back? "Oh.. that Melissa girl.. we don't need to call her back.." Am I just the least important person to ALL of them? Doesn't matter if its my OB/Gyn (two different ones since january), PCP (again.. two different ones) or my RE.. They never return my damn calls..

So.. Called RE's office to schedule HSG.. all optimistic and excited to get this test done so I can get knocked up again.. The lady said someone would call me back to schedule.. So.. even though I had to work on Friday 12-9.. I kept my cell phone with me the whole day.. because I knew they'd be calling back.. Problem is.. THEY DIDN'T CALL BACK.. So now I have to wait til Monday again to see what the heck their issue is.. I am gonna go for bloodwork there on Monday.. and I think I'm going to call before i drive up there to see why they didn't call me back and tell them I'm on my way and I want to schedule it when I get there if its not already done..

Monday is already CD4.. everything I've read says that HSGs are normally done between days 7 and 10 or so.. So.. I might only have 3 days notice? ugh.. I AM NOT waiting another cycle to TTC just because the Dr's office is too incompetent to schedule the HSG.. My brain/body tells me that the HSG is going to come back perfectly normal anyway.. If something comes back funky in my bloodwork, thats another story..