Hi Racheli,
Below article has instructions for reactivating your subscription. If you are unable to reactivate using the instructions or need assistance, I will include instructions for creating free subscription support request.
Reactivate a disabled Azure subscription
https://learn.microsoft.com/en-us/azure/cost-management-billing/manage/subscription-disabled
If you need assistance with reactivating please create a new subscription support request using my instructions below.
Use this link to start the process:
https://portal.azure.com/#view/Microsoft_Azure_CostManagement/Menu/~/support/openedBy/AzurePortal
Fill out Issue type: Subscription management, Summary, Problem type, Problem subtype, click Next.
There will be a delay, then some recommended solutions will be shown. DO NOT CLICK on any of the recommended options shown.
In the upper left corner, click Return to support request
Click Next to move to Additional details tab, fill out required information, email/phone, etc., click Next, review details and submit case. After submitting you should receive an automated email with a few minutes and a support engineer should contact you within 1 business day.
Please click Accept Answer and upvote if the above was helpful.
Thanks.
-TP