In order to verify your credit card, we pre-authorize a $1 test charge in our name (Perka) to make sure your information is correct. This is for security reasons and helps us ensure your card is valid.
No need to worry; we're not actually charging you $1. We will automatically cancel the charge before your credit card company processes it.
The charge will show up as a pending transaction for a few days and will then disappear. You will not actually be charged any money.