I'm a month in to my first BB which is the BB Flip and guess what I learned yesterday. Promo numbers {#3453, #9847/numbers that would be used by local radio stations, road side assist services, cabs} don't work with our phones. Of course when I needed a cab to go pick my car up I dialled more then once before I actually figured out what was going on.
Welcome to the forums. If you haven't found it yet, the dialing BEST-BUY and a bunch of other tips are found under the the Newbies Button (top of the page) in the How To and FAQ Forum.