Re: "Wrong purchase: "response was that I am refunded" "Can you tell me what is the best to do in this case?
I do not have the access to the app and I do not have my money."
Seems all that is needed is to just be patient, and wait for your payment method to show receipt of the the refund.
Re: How long refunds from the App Store or other Apple services take:
You can:Check the status of a refund for apps or content that you bought from Apple - Apple Support
the article says:
"When will I get the money back?
If your refund is approved, the funds are applied to the same payment method that you used to buy the item. Here's how long it takes for a refund to appear on your account or statement:
Store credit—It might take up to 48 hours to see the refund in your Apple Account balance.
Mobile phone billing—It might take up to 60 days for the statement to show the refund.
Processing time might be affected by your carrier. You can contact your carrier for an update.
All other payment methods—It might take up to 30 days for the statement to show the refund.
If you don't see the refund after 30 days, contact your financial institution"