Hi Sorin Costea,
Thank you for reaching out on the Microsoft Q&A.
In the Azure Portal, if your billing profile is "under review," it means that Azure is currently reviewing your account details. This process is standard and typically takes about one day to complete, but it can take longer in some cases. During this time, you might not be able to create new subscriptions or make changes to your billing profile.
To check the status of your account, you can browse to the Billing > Billing accounts page and select the account you used to complete your purchase.
For more information, you can refer to the similar thread: How to fix your account is under review.
I hope this helps! If you have any further questions, feel free to ask.
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