Comment by qingcharles

I always used TOTP with Namecheap and I kept the keys on three separate devices (one a friend's) in two different apps. One day their site just stopped accepting any of my TOTP codes.

Thankfully (and scarily) they did the same as you -- they removed the 2FA for me via chat so I could log in and reset it :D

I only have one domain left in there now...