My first professional job was at a big bank between 2011 and 2013. I worked as an Ops Specialist handling special projects for digital banking (credit cards, debit card, merchant services and so on). Because of this I know what DCC is and how it works. The normal process is something like this: my current VISA credit card is in USD (US dollars) and if I go to Portugal (where the official currency is the Euro, EUR) the normal process is for me to pay all transactions in EUR and the VISA network will convert the amount to USD and my bank will charge an additional fee (or not depending on the product). This also applies to MasterCard. This is where DCC (Dynamic Currency Conversion) comes in. Instead of paying in EUR on the example above, DCC converts the transaction to USD right there at the point of sale. Sounds convenient, right? Think again! DCC is not a convenience for the cardholder.…