Just got an email, and any PayAll payments done past 1st of November will be charged 0.95%.
The Citi PayAll fee is currently 2% and is part of your Terms and Conditions including your Financial Table. This fee is set at the point of scheduling your Citi PayAll payment, applies for the duration the Citi PayAll payments are scheduled and is charged to your account each time a Citi PayAll payment is made. The promotional Citi PayAll fee of 0% commenced from 1 April 2021 and will end on 31 October 2023. Effective as of 1 November 2023, the Citi PayAll fee will change to 0.95%. For more information please refer to Citi PayAll fees by visiting Citi Credit Card Fees and Charges (citibank.com.au).
I got an email from Citi in late July saying the interest free period is reducing from 55 to 44 days and 'This means that your payment due date will change'… The variation notice linked in the email gave further details.
Maybe you missed the email or it went to your spam box?