However, it’s not always the case that you only have to pay for the coinsurance. If the service availed has a copay, then you would have to pay the coinsurance on top of the copayment. Upon reaching the out-of-pocket limit for that year, you no longer have to pay for both coins...
(Plastiq stopped taking American Express in February 2023, then resumed AmEx acceptance in October 2023.) However, some credit cards have restrictions on the types of bills you can pay via Plastiq. For example, Visa cannot be used to make mortgage payments through the bill pay service. Meanwh...