Don't trust Google
There's a lesson to be learnt here - don't trust Google for anything business-critical.
I have an error with my Google Checkout account - I didn't accept an updated license agreement until the day after the deadline. Since then, I haven't been able to get at any of the integration tools (like the error console) because it tells me my account isn't a merchant account - even though it will let me view and update customer orders.
I reported it to Google Checkout support at the start of December, and got a message back saying their technical team are working on it.
I've now sent them 3 e-mails chasing the issue - the last one I didn't even get a response.
Their support sucks big time and is an epic fail for me. I'm now looking at an alternative like Sage Pay or (gasp) PayPal.
The fact they don't give telephone support is just shocking when they're marketing Apps as the MS-alternative.