Bugs in system and now Im being ignored

I have been having issues with my online profile on Vodacoms website for 3 months now. I have been communicating with them via Twitter and telephone calls. They advised me that this is an issue affecting various users and will be resolved by the end of October (its now December).<br> <br> I have on 2 occasions asked for an update but they are now ignoring me completely. I would love to escalate this to a higher level but it seems you can only get as far as the social media department (who are the ones ignoring me). I am really disappointed in the service received from Vodacom.<br> <br> I battle to understand how a company as large as Vodacom, with all its resources, can allow bugs like this into production and for such a lengthy period.