Hello @Dawid Łukaszewski - Welcome to Microsoft Q&A community forum!
Sorry for the inconvenience caused!
If you were using Azure free trial account, you would have been charged $1 verification hold on your credit card account. The hold is temporary and will be removed, never charged to you.
With Azure free trial account you get $200 and the free account is valid for 30 days. If you exhaust your $200 before 30 days your subscription will be disabled. Even if $200 is not used for 30 days, the subscription will be disabled after 30 days.
Ref doc: https://azure.microsoft.com/en-in/free/free-account-faq/
In your case, not sure why the subscription was not disabled after 30 days. May be you must have removed the credit limit. This may require us to investigate your subscription at your account level and this can be done by reaching out to Azure billing and subscription management team by raising a support request using this link - https://learn.microsoft.com/en-us/azure/azure-portal/supportability/how-to-create-azure-support-request. The ticket enables you to work closely with the support engineers and get a quick resolution to your issue.
Note: Azure billing and subscription management support is provided free of cost.
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