Yup. You're not alone. And my situation sounds like yours in several ways. Voicemail & VVM
I had a similar provisioning issue that may be part of the problem. I did a "double port" of numbers that required re-provisioning my 6+ year-old account (I ported my old TMO number out to a VoIP provider while porting a Verizon number into TMO to take over the old TMO account and contract -- possible, but messy).
The Blackberry service was supposed to be set up as "BES/BIS" but was set up as "BES bar BIS" which blocked BIS. VVM wouldn't work.
The BES/BIS got fixed, but it took additional time to get the VVM going. It could have just been the delay in sending service books, but eventually the VVM and regular enhanced voicemail started working. See my comments and details in the other thread.