I, too, really like MSQC and have ordered many times from them over the past 3 years. They had that big promotion in November and I suspect that slowed them down, and then, of course, it's now the Christmas season. Under normal conditions, I know a person usually has to leave their number and then the call back may take a day or so, the emails about the same, but they are such nice people and very helpful, so I've kind of come to expect that, but do not hesitate to call them back if you need immediate help.