Pathetic service

My phone has been soft locked 3 times already ! I am on a Flexi200 so therefore I do not have a limit . My payments are up to date and I have data left from the past two months . The woman I speak to on the phone say that they cannot find a reason that my phone is soft locked . I cannot understand how you can just soft lock someone's phone ? I cannot in my right mind comprehend why you would put the phone down in my ear after holding for 30min to wait just for a reason that MY account is locked ? I feel ****** of my money and I do not understand how and why Vodacom is doing this ? If I do not get a reply within two working days I will take legal action as I use my phone for work purposes and I am losing out on business as I cannot phone out !