Pay Superannuation authorisation

I do job share with another lady so she is at work one week, I'm at work the next week. I have an issue with the authorisation process in Pay Superannuation. To authorise the super payment you need to receive a code via SMS. That's okay if you only have the one person doing it but there are two of us so she has her mobile phone number entered as the one to receive codes and receives the code even if she's not at work so I have to contact her to get it, if she is contactable that day. It's massively annoying and I want to be able to receive the code via our work email like every other two factor code we receive. Can MYOB please change this? There doesn't seem to be any way to change it in the setting up. How can I get around this??