7 surprising facts about credit cards

By Melissa Lambarena | NerdWallet

Using a credit card to make purchases is straightforward, but understanding the ins and outs of how exactly they work can be more complicated.

On the back end, credit card issuers can take certain liberties that impact your cards’ features. If you dig into the fine print, you’ll find that card issuers generally mention they can make certain account decisions at their discretion. There are also unwritten liberties issuers can take, potentially in your favor.