My credit card is AUD based.

This is what use to happen: I view the hotel rate in USD. When paying, Agoda asks me if I want to pay USD or AUD. I usually choose USD.

Just out of curiosity, I choose AUD a few times to check our their conversion rate.

This is what always happen now: I view the hotel rate in USD. When paying, Agoda charges AUD to my credit card without ask me.

The conversion Agoda uses is 2.5% away from inter-bank rate. My credit card company on uses 0.5% away from inter-bank rate. So I pay 2% more if I let Agoda convert the currency for me.

Does anyone else have the same problem?

I contacted Agoda to discuss issue. All they can do is cancel the transaction without charging me a fee. But if I retry the same booking, I am always charged AUD even when I view the hotel rate in USD.....

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I can view the hotel rate in AUD, and Agoda will charge me AUD without asking.
However the hotel rate in AUD has build in 2.5% cost. So I still end up paying 2% more compare to view & pay in USD.
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2% is not too much. I can wear it.... but a nasty feeling of getting ripped off by Agoda....