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Browse credit cards from a variety of issuers to see if there's a better card for you.
Utilization - pay down cards. Worked for me - YMMV
Easiest way for us to advise you is for you to list all your credit cards, like this:
Card 1. Balance = ___ Credit Limit = ____
Card 2. Balance = ___ Credit Limit = ____
Card 3. Balance = ___ Credit Limit = ____
etc.
Also indicate which one is an AU,
Once you do that it shouldn't be too hard to get you the extra points.