I just recently started selling class tickets on my website. I list them under service and I noticed if my customer wants to buy more than one ticket they have to buy one ticket at a time. Is this a glitch somehow or a setting I randomly enabled? In the past when I sold physical items they were able to increase the quantity or even add it into their cart again but it doesn't do that for this. Is there a fix? Do I need to list as a physical item?