In this case, the name of the merchant was AP Borderless SIngapore. Searching brought up a company with a similar name, but using chat they said others have compained but they are a payment company (like PayPal) and don't use credit cards. Another search result was a site that that takes scam complaints and had several complaints for this company. (I also checked the validity of that site and it was listed as a reputable site.). I also searched my email around the date of the transaction and checked my calendar, but neither helped identify it.