Good news: your reply adds some clarity. Zapier is trying to create one record to represent all three items ordered, but you want each item in its own record. Is that right? (Your initial message said the customer ordered “2 times”, not “2 items,” which threw me a bit.)
Bad news: What you need goes beyond my current Zapier knowledge (and ability to test with the free account). I thought it might be a simple tweak, but what you need to do somehow is take that one chunk of data that’s going to Zapier, split it into multiple parts, and have Zapier cycle through those to create one Airtable record per part. As for how to do that, I’ll have to defer to some more more savvy Zapier users. Sorry!