Discovery Gap fails to live up to expectations

Normally I have a high opinion of Discovery and now I have a big problem with Discovery Gap Cover, I have been a member for quite a number of years and have included my wife and kids on Gap Cover as well. My son went to a day hospital for dental work (2019.08.07) and needed to be under anesthesia (since he is only 3 years old), I got an approval (Ref ***) from Discovery four days before surgery.

With admittance to the hospital I had to pay R1100 and the staff also assured me this would be covered by my GAP Cover. The process was done and all went good. When I started to receive the bills, Discovery (true to their word) covered the costs of the in-hospital bill, but only up to the medical rates for the dentist & anesthetist.

Then came the battle that Discovery Gap Cover will not pay the differences, I have escalated this issue a few times already but no luck, each time I got told that it has been rejected because of the dentist is not a "specialist" (so they studied how many years to get a specialized degree???) and the anesthetist ( which we all agree is a "specialist") also not being covered because it falls under the dentist procedure and is being treated as 1 claim - even though I receive separate bills for each.

So after many calls and frustration I was promised a manager would call me, this also never happened. The end result so far is that I had to pay in over R5000 for costs which happened IN HOSPITAL in an APPROVED hospital COVERED in my policy. I pay a huge amount each month to cover me and my family and then I still have to pay extra when Gap Cover decide they not gonna pay.... totally ridiculous and unfair, this experience leaves a bad taste in my mouth - NOT what I expected from Discovery!!!