Maturity benefit

So I phone Discovery to activate the maturity benefit, They told me my wife needs to do it herself on the app (not a problem she did it with a smile). On the maturity benefit, Discovery claims they will pay for the blood tests to confirm the pregnancy. So when submitted the claim now they said they are not going to pay because Lancet used different codes than what is required by Discovery. I mean really if there are different codes why were we not informed, also the blood test shows she is pregnant what does a different code matter? There was no other test blood test done along with the pregnancy confirmation. We claimed the first Gynecologist visit where Discovery paid a small amount for the visit itself but not for the scan of the baby again the issue was the code again the scan was for the baby why on earth does a code matter? Why is there a maturity benefit at all then? I am sure the doctor has been practicing for years already she knows what a scan for the baby is, but according to Discovery, this is not good enough.

I found out this today, so I request the codes, I spoke to two ladies at Discovery the one said she will mail me the codes the other one said no she can not mail me the codes only tell me them over the phone. So which is it now will I never be able to get these codes. Is the doctor not the right doctor to be at? Since Discovery is going to continue with it is not the correct codes, although I still believe a scan is a scan. But I am not a Doctor. Just stating this so future mothers will not make the mistake of doing the "wrong" blood test.