Good brand, bad design, total uniboob

I own two Maia's by Moving Comfort so I tried this one out when I found it on sale. It doesn't have underwire, I had total uniboob. The band at the bottom wouldn't stay put, it kept rolling up a bit. I bought a 38C, the same as I wear in the Maia, but the weird uniboob look is just too unflattering. I may try wearing a regular bra underneath, but I never do that with the Maia. I wouldn't wear it unless my other two aren't clean.