In order to verify your credit card, we pre-authorize a $1 test charge in our (former) name, Perka Inc. 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.