FAQ Modules won't expand on Mobile, link to random page on website

Hi Anton,
Thanks for your guidance on this. The page is located here: https://digital.mas.co.nz/kiwisaver-funds-test
I’ve coded my own module using the code you’ve provided, which is the second “Useful Links” section you see on the page. It works just the same as the prior module (which is Simple FAQ) on desktop but the same issue occurs on mobile where the dropdown does not expand and takes me to a totally different page on the website. Any further thoughts on how to resolve this one?
Cheers!