Horrible Service Version 2.0

So after getting a new contract, I am now getting smses about outstanding accounts linked to this number, and my network goes down for periods of time during the day. It seems the number I was given belonged to someone else and is still linked to their stuff. I don't know if this is the reason for the outages as well. I am missing important calls because while my phone says it has signal, calls go to voicemail and messages do not come through, and data is inaccessible. I phoned Vodacom only to be told by the absolutely unhelpful agent that there is nothing they can do. It seems the only way to get anything sorted with this company is to post about it online, hence the review.