We are aware that some consumers are seeing what appears to be a secondary charge for purchases made from the PlayStation Store from 6/25/2013 - 6/26/2013.
No action is required on your part to resolve this issue.
Please be advised that these are temporary authorizations, and will be released typically within 3-5 business days depending on the credit card issuing banks' policy. While temporary authorizations may be held from your total credit card balance until being dropped by your bank, we can assure you that your credit card was not double billed for these purchases.
We sincerely apologize for the inconvenience.
You can read the above information on the PlayStation Knowledge Center which is operated by our Customer Service group: https://support.us.playstation.com/app/answers/detail/a_id/4991