Line gets locked without asking for it

On 24/10/15 while trying to purchase data I realized that my phone was locked even after paying up my arrears on 16/10/15 and doing a sim swap. I called to accounts where the consultant told me it would be unlocked. I ended the call and tried a few times but still nothing and account was still locked. Called back at 12.32 spoke to another consultant who said that the first 1 didn't do it right but she will do it now and once I restart my phone it will be unlocked in 30min. Ended the call and then still nothing. Called again at1.40pm And spoke to Pumla who then told me that accounts is closed and I must wait till tomorrow which is when I spoke to a manager, vented my frustrations because I was running out of data and was not prepared to be held liable by Vodacom for running over my allocated data. Ended the call and then low and behold that consultant completely locked my line not allowing even phone calls or smses. Appalled at the incompetence and the inconvenience caused in my life. Found out today that they indicated that I requested the lock. I REQUESTED IT TO BE UNLOCKED. All just so I could purchase data on the network that failed me