I was read that article, the problem is I forgot to save the backup code when set up the 2-FA on Google, I was a little bit rush when replaced Authy with Google Authenticator.
Short story I was hiring an IT guy to move my website to another hosting at June 8-9, I changed my password before and after he login to my account. Accidentally because my phone is very slow, I uninstalled a lot of apps, and I moved cloudflare from Authy to Google Authenticator because I saw that option on my account is finally available (When I sign up a couple years ago I only have Authy option). I only used Authy for Cloudflare, another website using Google Authenticator, so I can reduce the resources by using only one app for 2-FA. A couple days later I was wipe the data and changed to a new phone.
Btw I was saved a backup code for another website, yes the option is showed up but the code didn’t work for login, and I contacted their support to turn off the 2-FA too.
I need to login because I want to turn off Argo, because I don’t see any benefit of it, maybe because my website need to optimized, not sure since I can’t login, and my IT need to login to my account.
One more thing that made me confused is an hour ago I got an invoice from Cloudflare, they charge me $20 for 4 websites, but I only have one website inside my Cloudflare account. I’m really sure my account not hacked because I’m using different password for different website and my password is very complex.
Btw, I have credit on Cloudflare $14.45, because last month when I tried to enable Argo, there’s an issue and my Paypal charged a couple times. Today Cloudflare charged me $20.40, my Paypal charged $5.95 reduced by credit on Cloudflare.