Look at this for yourself. Some banks have more than one credit card, and two of them are equal to one. That's completely useless, and it may lead to another one spending less than six times a year to pay the annual fee. Then you can cancel one card. Some banks calculate multiple cards independently, so look at it for yourself. If you don't care about the limit, you can leave one card for cancellation, or if one of your two cards is not activated at all, don't worry about it.