Hi Azure Admin Acct Owner,
Welcome to the Microsoft Q&A Platform! Thank you for asking your question here.
It seems that despite the updated billing, you are still unable to activate the VM. In addition to akinbade abiola reactivate your VM,
Your Azure subscription can get disabled because your credit expired or you reached your spending limit. It can also get disabled if you have an overdue bill, hit your credit card limit, or because the Account Administrator canceled the subscription. Some subscriptions can also get automatically disabled.
Please refer this documentation: reactivating the disabled Azure subscription
If you have any further queries, do let us know.
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