Cellphone operators and crime (8ta, CellC, MTN, Vodacom)

Your cellphone has been stolen.  I hope they can't make phone calls...

It was switched off.  You never changed the default pin.  Good thing the default is:

8ta:
0000 or 1234 - no thief will ever guess that right?  Your fraudulent call costs may be more than 0...

CellC:
A random number you couldn't remember, and changed to your birthday/lucky number/whatever.  The thief won't get it in 10 tries before the SIM is blocked.

MTN:
00000 - no thief will ever guess that right?  Your fraudulent call costs may be more than 0...

Vodacom:
A random number you couldn't remember, and changed to your birthday/lucky number/whatever.  The thief won't get it in 10 tries before the SIM is blocked.
 
Now, blacklist it (otherwise the insurance won't pay, and it is the right thing to do, right?)

I'll use Startpage to do a search for the term "Blacklist" on each of the network operator's sites to see if they provide instructions.  (Powered by Google, but without the filtering/sorting)

Let's see how our major network operators do when trying to blacklist a cellphone:

8ta:
The first non-paid for link has the number (081 182):


CellC:
The first non-paid for link has the number (084 140):


MTN:
Nothing...


Vodacom:
The first non-paid for link has the number (082 111):


Draw your own conclusions...

PS: The number for MTN is 083-1-808.  It can be found on the MTN service provider page (mtnsp.co.za) or the SAPS.  Good luck actually getting the phone blacklisted if complaints on Hello Peter are anything to go by.