It used to be 2 business days, now it's 5 if you read the auto- response email that you should have received.
DVC is going through changes again, they have added Japan MS advisors, Spanish speaking advisors, chat advisors, and reportedly some of the CM's may be working for a outside contractor. My last couple of conversations with Member Satisfaction seemed disjointed and much different than in the last several years. They were less interested in my issues and didn't offer to look into the problem. I guess it's possible that they were outsourced also.
I also found out that MS uses fake names so finding the same MS person again can be a challenge, they also change their names which makes it even harder to find them.

Bill