This is the "standard line", so why is it when you conclude that after investigating do you never get back to state that ?It's got more to do with the fibre networks having issue with capacity.
In my case the iperf tests show negligible packet loss, indicating no issues with the fibre network capacity. Pointing more to an issue with your international transit capacity.
So after all the run around collecting all kinds of test data for you there has been no response, you have simply ignored my ticket cause you do not want to deal with the fact that my case has nothing to do with "the fibre networks having issue with capacity."