I have seen alot of variation in promotion times as an attempt to benefit alot of different regions, but in most cases we can't really say it's not fair for them to run them in native timezones local for the company.
But I do believe we could offer a few good suggestions in hopes that perhaps it can make a difference.
If the RT System is platform across the other 2 offices, could all 3 offices work more closely together to form a titan of customer service. Granted we would expect that those assisting to have some knowledge in the games key points and offers so they can provide the best service on tickets. By decreasing the ticket mountains there is more time available to focus on key priorities that bring greater enhancement to the communities overall.
Perhaps the office bosses could do some talking about this for all our games here on NA side, as it has been a very big help as i have observed, in the AVA Community. LC has always had a big EU audience, and I think we could use some EU help or help period for that matter.