Dupe - see How to get Product bugs addressed in a timely manner
Atlassian stopped people logging bugs, they were getting buried I would assume. Unfortunately this means that even when a vendor finds a solid bug, its not easy (even slightly) to get an issue logged. And even then, it won’t be assigned, with no particular guarantee that it will be looked at, assigned or worked on at any particular time.
Every avenue open to Vendors is not geared towards us logging issues against Products. The Markteplace support portal available at https://ecosystem.atlassian.net/secure/Dashboard.jspa is as close as it gets. YMMV.