bad customer services

Got my contract phone ****** yesterday (20 May 2015) and when trying to contact the MTN customer services was informed that their call center is closed. Been trying to no avail for the last day just getting the phone blocked as I am not in the position to get to a MTN store. I am not fortunate to just go into a MTN store as I work a full day and the stores are closed when I get home However whoever has my contract phone is continuing using it while MTN had no contingency plan in place for such events. The ***** is currently using my phone and I am stranded as my primary number cannot be reached if anything were to happen to me or my family. Its pretty disgusting to think I pay my monthly fee and never call their customer services but the one day that I actually need urgent assistance, there is NONE. I just want to unblock my phone, I am aware that the call center is currently striking but MTN needs to look at how they treat loyal customers that have been with them for years and how they will rectify this. Can't stress enough that I'm disappointed and disgusted