韓國使用信用卡

All credit cards are designed to use worldwide as soon as the merchant accepts that network (Visa/MasterCard/American Express).

However, it is up to your bank to approve or not (usually due to fraud).

So it is a good idea to contact your bank in advance to avoid problems.

韓國用visa card 多, 你帶visa 卡比較安全.

如果唔係, 帶多少少現金去換都ok.

就算明洞附近換都平過係香港.