汇率差问题

我 3 月份提取了大约 30,000 美元。经过OCTAFX，我的部分资金需要返回到信用卡，约19,955.98 美元。我问是否还能把它转到我的银行卡。但如果这是必须完成的规则，我能接受。所以其余的通过银行转账发送，以当前汇率汇入我的银行。但真正的问题是我信用卡里的钱。其他经纪人在返回我的信用卡时使用当前费率。所以如果使用当时（3 月）的汇率，我不应收到 19,955.98 美元，而是大约 19,000 美元，因为当前汇率和存款时不同。

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high exchnage rate

I withdrew the money in March of about 30,000 usd. by octafx, my funds are partially required to return to a credit card of 19,955.98 usd. I asked if I still can send it to my bank. but if that's the rule that must be done, I'm fine.so the rest is sent via bank transfer. and my money came in at the current exchange rate to my bank.but what really problem is what goes into my credit card. Other brokers use the current rate when returning to my credit card. from us dollar to IDR rupiah.but octa fx uses the exchange rate when I make a deposit. where the rate is lower when sending to a credit card time. deposit in late january and early february. so if using the exchange rate at that time (march), I did not receive USD 19,955.98. but rather around USD 19,000. because of the difference in the current exchange rate and the time of deposit.