2FA

When setting up additional two-factor authentication (2FA), please can we have a button so we can select which method is our preferred method.  My preferred method is email but MYOB now only allows 5 minutes to enter the code (it used to be 1 hour) and sometimes my email can be a bit slow and I miss the time window to log in.  I added SMS as an additional 2FA method, for the infrequent times when my email is slow, but MYOB always makes SMS the preferred method.  I contacted MYOB Support (case #02176550) and spent over a month disabling then re-entering SMS as per instructed, only for SMS to always come out as the preferred method.  I job share so now I face the dilemma:  either get woken up on my days off with SMS codes until work colleague can "try another method" or risk not being able to log in at all when my email is running slow.   This should be an easy fix, should it not??