I bought a flight ticket from elong.net, 5644rmb should be US$880 from VISA 26aug rate, but they charged my 916usd. I called BoA and they asked "do you do business with this merchant" ? I said yes, and then they said I need to contact the merchant as it's not fraud.
How to proceed? Will elong adjust this, or do I need to speak to another department at BoA cards?