Vodacom A.K.A Avbob

I upgraded aprox. a year ago, the other day I saw on my monthly statement that Vodacom has been billing me all the time for my previous handset as well. I called them about the matter and they said they will fix it.

Now I received this month statement and all of the sudden I must pay over a R1000, where R680 is the balance on my old handset that is already been paid for.

Vodacom is suppose to refund me for billing me incorrectly for almost a year, but now I must pay them.

I dont know how a company like this can survive in a day and age like this with such useless service, not to speak of there incompetant employees.