"A few days before this" really isn't "handling this pretty well".
It's great that they (you?) are offering some assistance in transitioning to an alternative, but it's still a very crappy situation for customers during the holiday season with many people taking extra time off.
Considering the fact that they're going out of business, I wonder how many customers that is? Still a shitty time of year to do it, and a horribly small time window.