<prompt> Human: Hello, all,I just got an explanation of benefits and am freaking out. The health insurance company is closed for the evening, so I will not be able to contact them until tomorrow. Long story short, I am pregnant with my third child and am 35, so it was recommended I have an expensive blood test for chromosomal abnormalities. It also includes an optional test for micro deletions. The medical office gave me codes to call and ask my insurance company if they cover the services. I called and was told that both are covered, based on the codes. Just received an EOB that states they covered the less expensive one 3000, but not the more expensive one 5000, and I should be expecting to bill that amount. The EOB says thats not one of the services they cover. Understandably, I am freaking the f- out. Obviously, I will be calling them as soon as they open tomorrow, but any valuable info for me before then? Anything special I can say over the phone tomorrow?Thank you!- AllaUPDATE: called the insurance company today, as soon as they opened. They will be listening to the recording of the phone call. Thank you for all your advice!  <response>: Future advice and how my SO and I deal with this stuff: do all youre legwork via email so you have everything in writing. This includes the dentist. We had a weasily dental insurance try to back out of coverage on a crown, but we had their emails stating it was covered, so they relented. 