Depending on the size of your navigation bar, you may see the tools go underneath it. 

You can certainly fix it.

Add some padding on top in the script for desktop and mobile independently. 

<div class="bendigi-calculators"
    apikey="API_KEY"
    terms="https://canadianmortgageapp.com/terms"
    navPositionTop="50px"
    navPositionTopMobile="10px"
    tools="all"
    initialActiveTool="simple-mtg">
</div>
<script src="https://tools.bendigi.com/assets/calculators.js"></script>

Try setting it to 50px or 100px, and see which one looks best. 

PS: We are working on adding this option to the admin dashboard so you can configure it remotely.