Horrible client service

I had a vodacom contract which I called in to get a settlement letter on the 11th of July, on the 14th I went to Vodaworld to settle the account and the consultant assured me that I’m no longer owing vodacom anything. In August I call in to get my paid up letter I was told I’m still owing vodacom which I still don’t understand how as I have settled the account when I was calling to get clarity I was transferred from pillar to post I ended up paying Vodacom again as I was told it will affect my credit profile if I don’t. I requested for the recordings as no one told me I will still be liable for some fees till today I haven’t received them and I have been calling for my paid up letter they keep saying they will send it but they never did. I sent an email to one of their team leader by the name of Tsiedza if I’m not mistaken he never even bothered to respond back. I have never dealt with such incompetence in my life.