Horrible customer service

I'm really disappointed with the horrible service I've received from AF, I've been contacting them for the past few months and to this day my issue is not resolved. 1stly you call them and then you hold on to speak to someone for over 30-45mins. I have logged the same query more than 5 times now and still haven't received help. I was advised that a team leader will call me, as I requested the telephonic recordings in order for them to hear all the promises made and no action from their side. Sars is now on my case due to AF of which I made them well aware that they made a mistake on my paperwork and yet they are not interested in rectifying it. They provide incorrect information on a tax directive and need to submit a new directive but it seems this is too much to ask from them. I have a string of ref numbers that no one has bothered to attend too.