How do we escalate a major issue? We have been attempting to Copy an existing company to a new Company. The process has been running now for 96 hours.

We were told this is a QB issue and they are working on it and we should be addressed in 2-3 days. That was 4 days ago. Frankly, we find it hard to believe that this Copy process, which is not new, is suddenly failing. So what is the reason for this issue and how do we make sure it is getting the attention it requires?!!