A Microsoft offering that enables tracking of cloud usage and expenditures for Azure and other cloud providers.
Hi Aya Boutaarourte
If you have not upgraded to PAYG, you will not be charged and if you want to delete the card, please follow the below document
To confirm you have not upgraded to PAYG:
Go to subscription-> overview-> check your plan
https://learn.microsoft.com/en-us/azure/cost-management-billing/manage/change-credit-card#delete-an-azure-billing-payment-method
Please let me know if you face any challenge here, I can help you to resolve this issue further