Change phone request  Please make sure you read below:  For
security changing your phone number takes up to 48 hours.  Do
not change your phone number if you lost your phone - please
just wait until you get a new phone again.  Also don't change
your phone number to a phone number you don't "own" such as a
friends number. Make sure the phone number is a "working"
cellphone that can receive both text-messages and phone calls.
iPad, Skype or land-line numbers do not work!  We do not allow
you to constantly change phone numbers. Do not use temporary
phone numbers or you will be locked out.  See our help for more
info.  Old Phone (Please type your current cellphone number
registered in Authy) New Phone (Please type the new cellphone
number to change)