Cannot get through

I am posting on this website in hope that someone from Mobilesplus might actually pick up the phone and assist me. <br> <br> My mobilesplus sim has been permanently blocked, and I have been trying for the last three days to get through to the Call Center but it either just rings or the rare times I have actually gotten through to a CSC the call gets cut!<br> I have been to MTN and they cannot assist me, they are not even picking up my number on their system. <br> <br> Please can someone get back to me to help me, I use this number as a business phone and I am losing out on business. <br> <br> Please can someone contact me ASAP!!!