If you have one of the new Aussie Platinum Credit Cards the account maintenance request form for decreasing your credit limit can be found here.
The first 4 numbers of your credit card can help you tell which type of Aussie credit card you have. Cards starting with 5160 are Classic Low Rate cards, 5315 are Platinum Low rate cards and 5140 are Basic Low Rate cards.
Important Information. Applications for finance are subject to credit approval. Full conditions of use will be included in our Letter of Offer. Fees and charges are payable. The ?Aussie? trademark is a trademark of AHL Investments Pty Ltd ABN 27 105 265 861. Credit services are provided by AHL Investments Pty Ltd Australian credit licence 246786 and its appointed credit representatives. The credit provider is Commonwealth Bank of Australia ABN 48 123 123 124 Australian credit licence 234945. Credit Card Complimentary Insurances is issued by Zurich Australian Insurance Limited ABN 13 000 296 640 AFSL 232507.