Vodacom bad response and no outcome to complaints

I received a huge bill on a data package that is supposed to be capped on R429 a month, I use to get a popup to indicate that I have reached the end of my data bundle and had to buy additional data for my router to work, somehow this was now changed and I got a UGE bill going off by D/O of over 7k and counting. I raised the issue and later got a credit for this, Thanks, my problem now is getting my data bundle activated again as it is currently under a admin lock, I have phoned the 111 number numerous of times, each time I get the same answer that they can not unlock the admin lock, but will send a message to the 'back office'. The first call logged on this issue was on the 7th of October, I am paying for a service that I could not use for the month, I called twice yesterday again each week I get the same answers, but nothing is happening, and the only contact numbers you get is the 111 number. I have even been to Vodacom Menlyn branch to resolve and escalate this issue but nothing has happened as yet. getting over charged then not being able to use what you pay for and yet get charged for the service not fair to any customer, and now I hear from the operator that I have another fat bill on its way for December month, another 10 calls and taking time off to go and see someone in store to try and sort something out not fair Vodacom, please attend to my issue thanks.