Lawsonsp Com review for Hulk Bundles Quantity Breaks

I am having customers who use Internet Explorer complain they cannot check out. I reached out to Shopify for help and they advised it was this app. I reached out to Hulk's support and they said "I would like to inform you that our application doesn't function well with IE browser as it doesn't supports the latest version of JQuery." I have customers leaving without purchasing because they can't checkout. Just letting anyone who have customers using Internet Explorer to be cautious using HulkApps products.