Billing: Marketplace charges on Azure sponsorship account — Request for adjustment

Subject: Request for billing adjustment — Anthropic Marketplace charges,

USD 2,598.33, unbilled period

Billing account : c3490567-0a90-50e0-79af-1609754e172d:

              e5571c4f-384b-4cd6-9f18-8788e6d9a39e_2019-05-31

Billing profile : 4DEC-YKH3-BG7-PGB

Subscription : f13835d6-887f-489b-a066-cf1fc607b800

Amount : USD 2,598.33 (EUR 2,231.09), incurred 4-6 Sept 2026

Product : claude-ccu-azure-hosted-plan

Meter : claude-consumption-units

Publisher : Anthropic (publisherType: Marketplace)

Status : not yet invoiced; expected on the September invoice

Hello,

I am requesting a one-time billing adjustment, or an equivalent Azure

credit, for USD 2,598.33 of Anthropic model consumption.

FIRST, TO BE CLEAR ABOUT WHAT I AM NOT CLAIMING

I am not claiming this is undocumented. I have found the relevant

statements myself:

• learn.microsoft.com/azure/foundry/foundry-models/how-to/ use-foundry-models-claude : "If you have an account with a credit card on file, the credit card will be charged instead of Azure Credits."
• learn.microsoft.com/partner-center/marketplace-offers/ marketplace-faq-publisher-guide : "prepaid or sponsored Azure spend can't be used to buy partner solutions from Microsoft Marketplace."

I am not disputing the policy, and I am not asking for an exception to

it. My request rests on three specific, verifiable problems.

1. THE DEDICATED BILLING PAGE FOR THIS PRODUCT OMITS IT ENTIRELY

The page titled "Claude Consumption Units (CCU) billing in Microsoft

Foundry" (learn.microsoft.com/azure/foundry/foundry-models/concepts/

claude-models-billing) is the single page whose entire subject is how

Claude is billed. It contains:

"Azure Credit" - 0 occurrences

"credit card" - 0 occurrences

"sponsorship" - 0 occurrences

"Marketplace" - 20 occurrences

What it does say is: "The CCU meter is MACC-eligible... CCU spend

decrements your Microsoft Azure Consumption Commitment the same way any

other Azure Marketplace consumption does."

A customer who goes to the billing page to understand billing comes away

informed that CCU integrates with Azure commitments, and is told nothing

about credit ineligibility. The one page that should carry this warning

is the one page that does not.

2. THE PLATFORM CONTRADICTS ITS OWN RULE FOR THREE OF FOUR PARTNER PROVIDERS ON MY OWN SUBSCRIPTION

The documentation states that "Foundry Models from partners and

community are billed through Azure Marketplace". On my subscription,

that holds for exactly one provider out of four:

publisherType Provider Meter name Credits

Microsoft MoonshotAI "Azure Kimi - Model 6 Outp DZ" covered

Microsoft Meta "Azure Llama Models - 3.3 70B" covered

Microsoft Fireworks "Azure Fireworks Models - K3" covered

Marketplace Anthropic "claude-ccu-azure-hosted-plan" NOT

MoonshotAI, Meta and Fireworks are listed in the same "partners and

community" category as Anthropic, in the same documentation page. They

bill as first-party Azure meters, prefixed "Azure", and are fully

covered by my sponsorship credit.

So a customer who read the documentation AND observed the actual

behaviour of their own subscription had three concrete observations

indicating that partner models bill via Azure meters and consume

credits, against one that does not. The documented category does not

predict billing treatment, and Anthropic is the undocumented exception.

3. THE WARNING IS PLACED WHERE IT WILL NOT BE READ, AND NO GUARDRAIL EXISTS

The sentence quoted above appears as a trailing "Note:" at the end of a

bulleted list headed "The following subscription types are currently not

supported". That list is read to determine eligibility, not billing

treatment. A customer with a payment method on file confirms they are

supported and moves on. The financial consequence is attached to an

exclusion list rather than stated in a billing or pricing section. That

same article carries the disclaimer: "The author created this article

with assistance from AI."

Separately, the rule that credits cannot be applied to Marketplace

purchases is published in a Partner Center guide written for publishers

listing offers, not for customers deploying a model.

No spend alert was raised at any point. Per

learn.microsoft.com/azure/cost-management-billing/manage/spending-limit,

"Some external services published in the Azure Marketplace can't be used

with your subscription credits, and can incur separate charges even when

your spending limit is set." So no guardrail was available to me by

design. USD 2,598.33 accrued in three days on an account whose entire

sponsorship credit ceiling is USD 5,000.

REMEDIATION AND REQUEST

I identified the charges through billing analysis and stopped all

Anthropic usage immediately. Spend on this product has been USD 0.00

since 7 September 2026 and the amount is final. My remaining sponsorship

credit is USD 1,572.86, expiring 16 January 2027.

I request a one-time billing adjustment or an equivalent Azure credit.

I am raising this before the invoice is generated rather than after.

I would equally value a guardrail: a deployment-time notice, or a spend

alert, when a model deployment is not credit-eligible. I am glad to have

points 1 and 2 treated as product feedback alongside the adjustment

request, whatever the outcome of the adjustment itself.

I am a Microsoft for Startups member, actively building on Azure, and I

intend to continue.

Thank you,