Hey there, and welcome to Apple Support Communities lis134,
We can certainly understand your concern and can help provide some insight. Apple receives authorization to charge your account prior to shipping your item(s). Since you have been charged but the item is in processing, means the item is close to being shipped to you and has yet to be completely updated in the system. This is standard procedure, however, if you have a concerns about your order we recommend contacting us directly for additional information.
Check out these links on how to contact us and additional information on payments: Contact Apple for support and service - Apple Support and Payment, Financing, Refunds and VAT - Shopping Help - Apple
Kindest regards!