甲骨文新政策对于free用户ARM的4C24G砍到2C12G，系统将在8月18日将自动清除，要知道后续再申请一台ARM可是异常艰难，所以必备主动后台降配，没想到这时候我才发现，我有一台iphone 6专门做备份用的，估计是升级了oracle authenticator后居然给我配置搞丢了，看了一些论坛也有小伙伴也出现这样的问题，唯一的办法就是找客服。
所需信息如下（提前准备好，缺一不可尤其是free用户）：
- Email address（注册邮箱）
- Tenant name / Cloud Account Name（租户名称）
- Phone number（注册时绑定的手机号）
- 信用卡信息：注册时绑定的信用卡后 4 位数字以及有效期（Expiration Date）。
要知道那台甲骨文可以是2019年注册的，而我又是信用卡爱好者，一堆当时注册的信用卡，但几件事刚好衔接上，第一件事搬家整理的时候我把以前过期的信用卡都整理在一个盒子里，当时想把它用个框裱起来凑个相框纪念的。我筛选出当时20年快到期卡，因为当时我的心态就是怕被盗刷，所以找到当时注册时最优先要到期的卡且排除了银联和运通，因为我记得当时运通无法通过，此时筛选出7张20年要到期的visa和master，接下来我联系了银行客服，帮我搜索19年哪一张当时扣款验证时有oracle的账单。剩下最后一步就是手机卡，我又有很多手机卡，我都不记得当时我用哪一张验证过，所以我就凭借记忆选出3张最有可能手机卡。以下时我和客服的对话，供大家参考。
C：客服 G：我
G：
Hello, I lost my 2FA device (Oracle Mobile Authenticator) due to a phone reset and I am locked out of my Cloud Tenancy account. Could you please help me reset the MFA for my account?
C：
This requires a MFA reset for your account to have this working back again. To initiate the MFA reset process, I require specific details to authenticate your identity and verify your ownership of this Cloud Account. Kindly provide the following information: 1. Email Address: Please share the email address associated with the account. 2. Tenancy Name: Please provide your tenancy name. 3. Identity Domain: Default/OracleIdentityCloudService. 4. Phone Number: Please provide the phone number linked to your account. 5. Card Details: Please provide the expiration date & the last 4 digits of the credit card, that was used at the time of Free_Trial registration.
G:
- Email Address: XXX@XXX.com
- Tenancy Name: XXXXX
- Identity Domain: Default
- Phone Number: +86AAA (Alternative numbers if the first one doesn't match: +86BBB, +86CCC)
- Card Details: Expiration Date: XX/XX or AA/BB, Last 4 digits: 1010
Note to agent: I am not 100% sure which specific credit card and phone number I used when registering this free account back then. Therefore, I have provided all possible phone numbers and cards above. Could you please kindly verify them against your system? Thank you so much for your patience!
C:
Verification is successful, please stay connected while I process your request for MFA reset.
G:
Thank you so much! I will stay connected.
C:
Thank you for your patience, your request for MFA reset is added to queue. Estimated time for the MFA reset is approximately 4-6 hrs. We kindly request your patience. After 4 hrs. you can log into your cloud console. After logging in you shall see a screen which shall ask you to set up a new MFA. Then you can just follow the on-screen instructions to set up new MFA. If not reset even under next 6 hrs. Kindly reach us with this request Incident ID. Here is your Incident ID: XXXXX-XXXXX
G:
Thank you so much! You've been very helpful. Have a great day!
第二天，顺利登录，并且重新绑定了了Google Authenticator，我也没有升级，有很多人薅羊毛升级后滥用4c24g，但是对我来说最后的结果如果扣不到张当后续就是被封。
总结：最好用的二验MFA就用google，且不要联网，多机备份。
感谢Oracle这么多年提供如此优秀的VPS，虽然arm后续也许也会再次砍掉或者降配到1c6g，但AMD1c1g只要还能永远保持就非常感恩了。