Voicemail Box not working

I called 114 on 01.02.2016 and spoke to an Allen, I then asked for his Manager and Priscilla who said she was the Team-Leader took my call, after frustrating unnecessary questions, I explained to the manager that I have dialed 121 and was prompted to press 1 for voice mail activation, however since 01.02.2016 my voice mail is still not not activated. All the contact center staff assure me after an hour my voicemail will be fixed, all I got was the same message that I have being getting for the past 3 months \thank you for choosing to have your own personal voice message, your request has been locked, please note that your request might take 24 hours and an sms will be forwarded to you once completed. Got lots of messages during this 3 months that my voicemail has been activated and my line has been synced but still same message."