Shocking Service by South African Airways bookings

I have booked two expensive business class tickets recently. The first one I was charged R3000.00 more than I was quoted and had been waiting for over two months for a refund and the second ticket I booked SAA just cancelled without our knowledge and when trying to book in online discovered no ticket. Tried to get another ticket which was much more expensive and now could not get the legs I wanted as was booked out so had to book flight with accommodation overnight to get to venue. Was told I would receive ticket confirmation in 20 min which I did not receive then when I phoned back was told ticket didn't go through so they would have to rebook. To discover when arrived at airport that I now had 2 very expensive tickets booked and that they would not give my money an extra R19 019 00 back until 21 days later. The subsequent correspondence was shocking and I had to spend nearly 5 hours on the phone in South Africa was told it would be fast forwarded to Refunds and then had to phone from oversees 15 days later to discover no refund and couldn't use credit card as it was over the limit due to SAAs double charge. SAA please get it right. YOUR SERVICE AND ATTITUDE ARE SHOCKING