【2019.12 更新】 Plastiq 已重新支援使用 Capital One 商業信用卡付款，個人信用卡暫時還沒有被 Capital One 解禁。H/T: Doc
【補充更新】 Doc 收到 Plastiq 來信說明， Capital One 信用卡付款被銀行單方面暫停了；不知道是不是群發郵件，我兩個帳戶都沒有收到郵件。
As you know, Capital One has asked us to temporarily suspend processing of payments with their cards. We’re working closely with them to remedy the situation and will reach out as soon as we have an update for you. Meanwhile, consider trying some of these great credit cards that many of our customers use to pay their personal and business bills (list of Plastiq affiliate links of other card issuers)
根據讀者 batman 的提示，近期 Plastiq 似乎暫時無法使用 Capital One 信用卡付款；讀者 batman 是用於支付房租。Flyertalk 上也有類似 DP，應該已經持續一段時間了，目前仍不清楚什麼時候會恢復正常。
- Plastiq 個人帳戶註冊連結（限時送 $500 FFD, Fee-Free Dollar）
https://www.uscreditcards101.com/how-to-use-plastiq-bill-pay/
