Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Hi @Alan Sproat
I'm sorry to hear about your stroke, and I hope your recovery is going well.
Based on Microsoft's billing conventions, an invoice number that begins with "G" is typically associated with Microsoft business services.
Since this is a business-related invoice, the best way to identify exactly what was billed is to sign in to the Microsoft 365 Admin Center with an administrator account and review the billing details:
Microsoft 365 Admin Center → Billing → Bills & payments → Open and look for the invoice you need.
There you should be able to see the associated subscription, usage charges (if any), billing period, and payment details.
As this is a public forum, I do not have access to your billing records and cannot determine the contents of a specific invoice.