Custom Personal Gift Co review for Gelato: Print on Demand

Giving this App a one-star rating. Why? The app appeared in my Shopify Embed Apps. When I did a test product, the left gallery on the product page had an ugly window pane scroll. I switched off the Gelato App and the ugly scroll disappeared. I contacted support (Emilia) 2 weeks ago and she couldn't explain what was wrong but said the problem would be escalated to tech. 2 weeks later no contact from any support so I wrote another email to support. Nothing. Today (28th June I went online to try to contact support again. Said under 2 minutes. I was still hanging on after 15. Maybe this Shopify feedback page for Gelato is monitored more. So forced to come here and complain. Support rating -5.