I think everybody is correct here, to some degree.
On one hand, when ordering from a small-ish supplier that is creating custom liquids 'to order' with a well-communicated turn-around timeline, you can expect things to take a while, especially since they are going through a growth surge at the moment.
On the other hand, this should ideally have no effect on responding to customer service inquiries. Those should always be handled within a reasonable timeframe, which is often a reflection of user expectations within any given industry.
So, TV is totally 'right' by taking a few days to get out orders, and they are very honest and upfront about how they do things. However, it would be better form if inquiries were always responded to within a timeframe of 24-48 hours maximum, in my opinion. Any longer than that and the natives get a bit restless.
In any case, please cut them some slack. They are the best liquid supplier around by far, and they are scaling as quickly as possible given the context. Your order will come, hold tight. If you're losing your mind, try calling again. The phone is your best bet, by far. ;-)