@Nick van der Veen - Sorry for the inconvenience this must have caused!
This is billing query and can be better handled as a support request. Azure billing support team will be able to assist you further with your concern. For raising a billing support request you need appropriate permissions. You can check with your account admin to raise a support request on your behalf or grant you permission to create a support request.
To create a support request, you must be an Owner, Contributor or be assigned to the Support Request Contributor role at the subscription level. To create a support request without a subscription, for example an Azure Active Directory scenario, you must be an Admin.
Doc ref: https://learn.microsoft.com/en-us/azure/azure-portal/supportability/how-to-create-azure-support-request
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