今年一月八日絕對會是 MS 史上最重要的一天，因為 American Express 終於在這天下重手，大規模關閉 Bluebird / Serve Prepaid 卡持有者帳號，換言之 MS 進入了新的黑暗紀元；套句某人的話，專心工作去吧… T_T
We are writing to let you know that we have observed unusual usage patterns on your American Express Serve Account. Because of this, effective immediately, you will no longer be able to add money to your Account.1 We have made this change in accordance with Section 15.d of our Consumer User Agreement, which you can view here.
Please be aware that you continue to have full access to the funds on your Account and can withdraw them at any time. Any applicable monthly fees continue to apply.
Once your balance reaches $0, please close your Account online via your Profile page accessible here. Scroll down to the Close Account section and click “Close Account.”
官方說明：Fidelity recently launched a new credit card program with Elan Financial Services (Elan) and Visa® as the program’s exclusive network. We selected Elan for their experience in financial services, their innovation, and their commitment to customer service. With Visa, members enjoy the strength, recognition, and acceptance of the Visa brand.
事實上由於各信用卡發卡對敗家好幫手 MileagePlus X 的消費類別判定不同，再加上 American Express 對於透過 MileagePlus X 的消費都當成在 United Airlines 消費，因此即使透過 MileagePlus X 購買 $300 Amazon.com gift card，也一樣能達成消費要求，同時再加得 MileagePlus X 贈送的 375 哩 United Airlines 獎勵哩程點數。