One of the Worst Invention of the Century

Yes . Every time asking same details.

This the 2nd worst. 1st is still the SipLine

hmm for me it kept me signed in for months.. dont know why there is issue for you in 2FA method

clear cache and things and then do this dont ask for codes, it wont log out 

Most of the times even after failed payments order shows successful and later cancelled such a pathetic software Amazon is using

Internet and mobile

Wow, out of all problems in the world, u r sad bcoz u cannot login into amazon, just wow, well grow up buddy... That all i can say 2 u... 🏻

it depends on cookies

If cookies gets destroyed, then it will ask for verification 

Cookies gets destroyed by time limit set by developer, extension and software that kills cookies, eg CCleaner, long time no usgae, sometimes after browser update

One more pathetic thing about Amazon is that everything is in hand of delivery boy during rush days when they fail to deliver all parcels they cancel parcel and mark them as rejected and you can't do anything

In Flipkart you get a confirmation sms asking is it you who rejected parcel or delivery boy himself and there you can take  appropriate action and delivery is scheduled again, I lost many deals due to pathetic delivery boy's and worst Amazon software which gives all right to delivery guy

yup uplay keep forcing me to put username password every week or so despite 'keep me signed in' 'trusted apps' bullshit 

Did U Install Cc Cleaner Or Any Other Related Software That Cleans Everything On Browser Exit / Computer Restart ??
 
  Also Check Browser Settings Where Cookies Getting Deleted When Ever Browser Is Closed…!!