Just wanted to post a DP given some trepidation I had after reading through this thread and having scheduled an auto loan payment to PenFed through Plastiq using a Chase personal Visa (CSR). It's my first foray into using Plastiq; trying to hit MSR a little faster. I came upon conflicting information with a certain chart published by Plastiq showing Visa as acceptable for auto lease/loan payments as compared to an email chain back and forth with Plastiq support in which they highlighted the July 2019 updates to the Visa allowable processing categories (btw, not too pleased with support; multiple generic, canned answers did not answer my specific questions at all).

I lowered my cash advance limit with Chase as a contingency should a cash advance be charged. As of today, my card was successfully processed by Chase for the bill amount showing 'PQ Pentagon Federal Cred' (pending), and the Plastiq payment showing as 'card processed' with the check set to be delivered in 8 business days. Sooo unless anything changes after the fact, looks like I got away with a payment category outside of personal Visa allowable categories.