Horrible service and Non-existent no after-sales support

I signed up for two lines - one for my office and one for my residence, a 30/30 and a 50/50 respectively. All was good and well until I received my invoice, I was now signed up for a 50/50 and a 100/100 respectively (Which was incorrect even after the upgrades). I was now paying substantially more than I had agreed to.

I have been chasing Vox for the past 3 weeks to have this amended and I have not been able to get anyone to assist and now I am being harassed about my services being terminated due to non payment when two of their agents both promised to credit my account(s) and when I asked if anything like this would happen I was assured it would not.

Clearly taking your business elsewhere is the better option if something so simple cannot be fixed.