AFFINITY DENTAL - SHOCKING SERVICE

I called to find out if I need authorization for a dental procedure and the call centre lady told me I dont need authorization I must take my card to any dentist and they will get the authorisation. I specifically asked if I could go to ANY dentist and she said yes, there is a voice recording which Kim Anderson has confirmed all the above. My son then went to anther dentist and they did not call for authorisation (they said it's not their responsibility???? The outcome was that this dentist then went ahead without my authorisaiton or calling Affinity and did R25k worth of work on my son. Affinity refused to pay. Long story short, i got hold of Kim who then said they would pay R4k (which they did) and a further R7k, this was 2 months ago, now I find out they have not paid the R7k and are making excuses for not paying. I have emailed Kim 4 times in the last week but not a single reply. I am now facing legal action.