****** Telkom Contract Phone

I have a contract with Telkom and was just ****** of the phone this past weekend. I think I was able to blacklist the phone when i called 180 using my other phone. I am not sure if this was successful because the lady i was speaking too abruptly cancelled the call when I asked her if i could claim a new phone seeing that I still have over 16 months on my contract. I called again this morning and the gentleman I spoke too also dropped the call. Can someone from Telkom please call me on *** so this can be resolved.