I live in Florida, as well, and have ordered through Cubesmith several times. I don't send a check - I pay by Pay Pal. Consequently my order confirmations have all come through Pay Pal. Perhaps he doesn't send an order confirmation if you send a check in the mail.
Each time I ordered from Cubesmith, the product was in my mailbox within five days - I think once it came even sooner. But if you have doubts, there's no reason not to send him an email. You'll find he's very personable and very professional. Just email and say that you wanted to make sure he got your check, and wondered when you could expect delivery of the product you ordered.
By the way, Arget, what part of Florida do you live in? There are several Floridians on this forum - although Florida is such a big state that I don't think any of us live near each other. I live in Palm Beach County - on the southeast coast.