Air awning over windows

Hi we have recently purchased a Lunar Clubman SE caravan with Dorema Futura 330 air all season awning. The issue we have is that it doesn't matter where you position the awning it covers the windows a leaves big gaps. The awning does come with cushioned pads and poles to push against the side of the van but it doesn't work. I have seen that Vango awnings have a special draught seal system for this issue. Has anyone got a solution for this problem or do i have to bite the bullet and buy a different awning ? The Caravan dealer hasn't been much help as they sold this as a package.