When I switched from Amex Gold Credit Card to Amex Platinum Credit Card, I instantly got an Aussie call centre. I still have frustrations with them, but they are admittedly easier to deal with. Mind you, it might not be only because they are Aussie, but I believe that they are staffed with more senior call centre staff with more delegated authority to do things to please the customer - e.g. bend the rules a bit if need be and dpeneding on the situation.
So, I would encourage you to switch if you are unhappy with your current provider, and to let them know why you switched.
The Amex Platinum credit card is great value with the free ticket and points and better customer service, IMHO. Unfortunately, I still have to have a Visa/MC from another provider, as AMex is not accepted at all establishments. I have a velocity card that I use when i need a Visa/MC. If I had to pay for year 2 of velocity, I think I'll switch to woolies (if it is still around then) or Citi (their world privilege gives great dining offers, and I might get 5,000 points if I get a referral) or ANZ Gold (for their travel insurance). I might transfer the velocity card to a cheaper product at NAB. I also have a Coles Myer Source, which I pretty much do not use. I think I'll just cancel it at some stage - I got it for the 10% discount at Myers and its no annual fee, but it provides no perks that I find of value... gee, I am getting pretty off-topic here.
So, my suggestion is to make fewer racist remarks - saying Citi's Indian/Filipino customer service is cough is ok, but calling them monkeys is going a bit out of line, IMO. Switch and let them know why you are switching. There are plenty of cards with Aussie Call centres. Try Amex Platinum Credit Card - I am happy with their CS, for the most part.