Strange Bug on mobile

For some reason, there is a strange bug on the “Request a Quote” page on my site on mobile.
If you try to scroll all the way down to the bottom you’ll see the screen doesn’t let you scroll down and has this jittery elastic effect. (Only occurs on Chrome mobile)

Any idea why this might be??

Here is my site Read-Only: LINK

The bug was caused by a link to a page element’s ID, when the page element was set to display: none;
Removing this link has solved the issue