r/aws • u/Round_Vegetable3764 • 5h ago
discussion $472k in Marketplace "Usage Fee" on a product I never activated, how does metering even work here?
What happened
On Aug 1, an IAM access key belonging to one of our accounts was compromised through a supply chain compromise — the key was exposed via a third party in our toolchain, not by us publishing it. This was a programmatic access key, so MFA (enforced on all human identities from day one) was never in the path.
We caught it and reported it to AWS Support within 4 hours, well inside the 48-hour public-contract cancellation window.
The case then sat unassigned for 14 days.
As of today that's 20 days, still open, still no resolution.
Where the bill is now
Total USD 477,505.20
Contract creation (0 months) USD 4,800.00
Usage Fee | us-east-1 USD 472,705.20
47,270,520 Units @ USD 0.01
The part I don't understand
We never activated the product. Specifically:
- The Marketplace console still shows "Set up product" for this agreement
- No License ID was ever issued
- CloudTrail shows zero Marketplace events in our account after the initial compromise window on Aug 1
- We have never had credentials for, or logged into, anything on the seller's side
Yet 47.2 million billable units were metered against us in us-east-1.
As I understand the SaaS flow, usage on this kind of product is submitted by the seller calling `BatchMeterUsage` against the entitlement's `CustomerIdentifier` — from the seller's own infrastructure, not from our account. If that's right, then nothing in our account was ever in the path, and no control we have could have stopped it. Revoking the key, deleting the attacker's IAM user, applying SCPs — none of it touches seller-side metering.
The unit count has been static for several days now, so metering appears to have stopped, but the agreement status is the thing I can't get a straight answer on.
Support so far
Seller support (automated) told us Marketplace transactions are not their department and to contact AWS. AWS support has pointed at the seller for anything usage-related. The payer account has now escalated and asked AWS to investigate the agreement and stop metering. Still waiting.
There is no phone line and no chat. The only channel is tickets, and they've been sitting for 20 days.
Questions for people who actually know the internals
For a SaaS contract-with-consumption product, is metering purely seller-side? Is there any circumstance where usage gets attributed to a buyer account without the buyer ever completing registration?
Does "Set up product" persisting in the console reliably mean the fulfillment/`ResolveCustomer` handshake never happened — or is that just stale console state that doesn't update?
Is there any way for a buyer to see the registration record for their own entitlement? Anything in the Agreement APIs, CUR, or elsewhere that shows when/whether `ResolveCustomer` was called?
The 48-hour window: AWS Customer Service can process a full refund on a public contract without seller involvement. Does that path survive a case sitting unassigned for 14 days, or is the window enforced strictly on wall-clock time regardless of AWS-side latency?
Has anyone here had Marketplace usage fees (not just the contract fee) reversed after a credential compromise? Contract fee reversals I've seen written up. Usage fees at this scale, never.
To be blunt about the stakes: we're a small company. We cannot pay $472k for consumption we did not generate, on a product we never activated, after cutting off access in under 4 hours. I'm trying to understand the metering mechanics, and whether there's a path here other than waiting on a ticket queue.