Vodacom gun to my head

So Vodacom like to effectively ignore everything you write to them, then threaten to terminate your number, in spite of.....what I have repeatedly asked them to do. My latest in at least 30 emails and calls on this below. What am I missing? .................. 1) the credit was against a contractual failure by vodacom to provide a service i was paying for, in this case my SMS not working for around 6 months. So in my mind that should be credited to my account. It's like ordering a steak in a restaurant, only receiving the chips and being asked to pay the whole bill 2) and even if i play the Vodacom game of being granted mythical airtime, where ever has this been reflected in my account? For all I know you are lying about this because I have never seen any evidence of it!

So, provide me with evidence you have actually done what you say you have done. How hard is that, unless you are lying to me?! .................

They simply refuse to give me evidence of having credit me in any way at all. Given the contractual failure to deliver a service the credit should be to my account. By a slight of hand they say they gave me airtime. But I have never seen any evidence of this.

So my phone has been cut off for 3 months and now they say they will cancel my number. How difficult could it be to show me evidence, unless there is NONE!