The marketplace purchases CloudAMQP and Sendgrid  are not showing up in Marketplace Charge Report as well as we are unable to map them to the Azure subscription from the EA Portal as the Usage Summary Report does not show the Marketplace purchases.
We constantly scale the CloudAMQP instances up and down to keep costs as low as possible.
CloudAMQP bills on a per-second basis. See https://www.cloudamqp.com/plans.html (Billing): 
All plans are billed by the second, so you can try out even the largest instance types for mere pennies. Billing occurs at the end of each month, and you're only charged for the time an instance has been available to you.

It seems that the Marketplace partner only passes the sums on to Microsoft on a monthly basis for settlement via the portal without any information about the correlated subscription. But that's not enough for us. We want to see the exact values per subscription.

Ticket already open: 118070418518504