Prevent unauthorized Roblox charge deduction from Apple Pay on iPhone

Greetings @anri226,

and welcome to this Apple (user-to-user) Community!

Thank you for your post to us here. We'd like to help, yet there's not a lot we can do.

Apple Support is unlikely to see the request you are making here in the community, and no-one here has access to your accounts or details in order to help in that way.

There are links to "Support" at top right, and at bottom left. on this discussion page.

or

Apple Support provides a Billing website: (info. / support / contact options etc.)

Subscriptions and Billing - Official Apple Support

As other family members have access to your device:

If you wish: You can change your settings to require a password for Apple purchases to prevent any accidental, unintended, or unauthorised purchases.

Require a password for purchases in the App Store and other Apple services - Apple Support

Also: Apple now provides a helpful family user guide, and improved parental controls:

Apple Devices for Kids and Families - Apple Support

Purchases on your device require your Passcode and if you give that to someone else to use your device, you have authorized them to make purchases. If you wanted to prevent them from making purchases, Apple offers a variety of tools to do that, but they must be used by you before that purchase is made. Here are a couple of ways that could have been done.

• Require Password for purchase, and this would be one your child does not know.

Require a password for purchases in the App Store and other Apple services - Apple Support

• Use Screen Time restrictions to prevent any in-app purchases.

Turn off Apple In-App Purchases from Screen Time on your iPhone or iPad - Apple Support

• And finally, if you want to completely prevent the use of the App Store for even downloading apps, you can also turn that off in Screen Time.

What I suspect you are seeing now is a Pending charge if it has not been billed to your card. It is not possible to remove a Pending charge or request a refund on a Pending Charge. As pointed out, in most cases all transactions in the App Store are final, but at times Apple may provide a compassionate refund. Only after the Pending charge has been processed would you be able to request a refund to see if it would be granted.

Request a refund for apps or content that you bought from Apple - Apple Support

Sales on the Apple App Store are all sales final. Any refunds granted are a courtesy and not a routine process. When you provided your child your device and passcode you authorized any and all transactions the child conducted.

This sounds harsh and I don’t mean it to be. But I’ve seen posts in the community here of children charging hundreds of dollars and the refund was denied. It’s best to add the safeguards brbo refers to in their post. Good luck!