Cutting Costs

The guy comes rushing in the bank and talk to the manager:
- I just got robbed!
- You've come to the wrong place! This is not a bank and a police station!
- No, I wanted to cancel my checkbook, flash card ... Can it be?
- Oh, sure ...? she says, embarrassed? Just a minute, please ...
After consulting the database on the computer, she asks:
- You also had a credit card?
- Yes, I had ... But I will not want to cancel ... It will be worthwhile ...
- It will not worthwhile? ? exclaims the manager? But how so?
- I looked and saw that the extracts thieves are spending less than my wife..!