Wren + Glory review for Hextom: Free Shipping Bar

The Free Shipping bar app doesn't work with my theme (Turbo) despite their support team saying it does. The bar always creates a gap with the top of my page which makes it unusable. My bigger issue is that I can't seem to get their support team to help me resolve this problem so I can use their app. Their lack of customer support is really what's forcing me to give 1-star.