this is the second time a subscription is renewed/purchased without verification from me
Before you receive an invoice again, you need to cancel the subscription.
If the invoice has to do with an app that has a subscription associated with it, see -> Delete apps on your iPhone, iPad, and iPod touch -> Delete apps on your iPhone, iPad, and iPod touch - Apple Support
- If you delete an app, it doesn’t cancel in-app subscriptions that you might have. While deleting an app, you might see a Cancel Subscriptions option. Learn how to cancel your subscriptions.
If you don't want to continue a subscription you need always to cancel that subscription in time, see the following Apple articles:
If you want to cancel a subscription from Apple
If you want to cancel a subscription from Apple - Apple Support
If the subscription that you want to cancel is not listed
If the subscription that you want to cancel is not listed – Apple Support (UK)
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Refunds are not guaranteed. For more information, see the Terms & Conditions.
If Apple has notified you that it is not eligible then so be it.
We can't help you, sorry, we are also users of Apple products & services like you.
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To avoid the case in the future, see:
Require a password for App Store and iTunes purchases
Require a password for App Store and iTunes purchases - Apple Support
Manage App Store purchases, subscriptions, settings, and restrictions on iPhone
Manage App Store purchases, subscriptions, settings, and restrictions on iPhone – Apple Support (UK)
Prevent in-app purchases from the App Store
Prevent in-app purchases from the App Store – Apple Support (UK)
Get more help and assistant from Apple directly, see Contact Apple for support and service -> Contact Apple for support and service – Apple Support (UK)