What is the issuing bank of your traveler's checks?

您的旅行支票的发行银行是哪家？

Well, what if by government law, from now on only one bank can issue bank notes and that's this central bank.

根据政府法律 从现在开始只能由中央银行发行货币。

In that case, their card is declined and we tell the customer to call the issuing bank.

Katy：在这种情况下，他们的卡被拒绝了，我们告诉客户打电话给发卡银行。

Then " we tell the customer to call the issuing bank." The " issuing bank" is the bank that issues (or gives) the customer the credit card.

然后“我们告诉客户致电发卡银行。” “发卡银行”是向客户发行（或给予）信用卡的银行。