This is from a place called USCB...I think it is a debt collector....They use a phoney name for some florist in  PA....They don't leave a message....idk

Looks like a collection agency.  USCB Corporation...here's the website.
http://www.uscbcorporation.com/
I can't find where you are linking them to a florist but I did find their BBB rating and they've got an A+ which is rare for a collection agency from what I've seen.

Uh-huh! And this "reputable" company is going to have no trouble sending out those letters of validation..on request..as required by federal law..right? Full, complete and legitimate letters of validation, as required by federal law..right?
We'll see. And we'll be waiting.
Everyone! Know your rights under the FDCPA!
Be Safe. Be Aware.
Gunnar

Just purchased a Trac Fone for one of the kids.  From time of purchase til time of call, less then 20 minutes.  This company has been reported and action will be forth coming.  No message and no recording when phone was answered.