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Hi, this is a billing-account recovery issue and does not require buying another support plan. Sign in with the original billing-account owner and use the Azure Billing support/contact route, selecting payment method or disabled/canceled subscription; billing requests are free. Include the invoice number, billing-account/profile ID if visible, cancellation date, and the exact portal error privately. Ask Billing to restore access to the billing profile or provide a supported way to settle the outstanding invoice. Do not create a second tenant/subscription to pay the old balance, and never send card details in Q&A or email—enter them only in Microsoft's secure payment experience after the account is repaired.