Let's take up the offer and send another.
As usual you can't comment on the Mediamax blog, so leave comments here.
This is their latest posting:
We understand your frustration with the slow response time from MediaMax Customer Support. Due to higher volume than normal our turn around has slowed considerably. We have addressed this situation by switching to another Email Response Management system that will enable us to improve response time. If you have sent an email recently and haven’t heard from us please shoot us another one. We’ll answer every single query as quickly and efficiently as possible.
Thanks for your support and your business!