Renewal of student verification not working

[dustypunk]

Plan

Student/premium

Country

Australia 

Device

IPhone 13 

My Question or Issue

I let my student verification lapse and was charged the full premium fee for 3 months. I renewed it today and it said the renewal was successful, and that my bills would be AUD $6.99 per month. But in my account billing info it’s still saying that my next bill will be AUD $13.99.

I’m a PhD student and taught briefly at my university a couple of years ago. When I went through the SheerID verification process, the page that came up through my uni said that my affiliation was “staff” - could this be the problem? If not, how do I solve it? I can’t afford to continue paying the full premium fee.