Why does the government think I don't have insurance when I do?

I turn 26 this month which means I get dropped off my dad’s insurance. So I went onto the government healthcare marketplace to sign up and went through the motions and signed up for United Healthcare for my health and Humana for my dental and paid my first premium for each over a week ago. Well I got an email from the healthcare.gov marketplace saying I still have to pay my premiums or else face fines and potentially losing my coverage. I logged into my healthcare.gov profile and it says I still haven’t paid. I have my membership cards in my wallet and money missing from my account that went to Humana and UH, but when I follow the link on healthcare.gov it brings me right back to the pay first premium page for each of my plans and it would let me do it again if I put in my info. So how do I convince Uncle Sam I’m covered?