Avoid Travelstart at all cost

I have used travelstart for many years for my business travel, but will never, never use them again. I booked a ticket incorrectly. I booked the ticket at about 9 in the evening and then realized the next morning at about 8am that I had booked the incorrect date. I immediately went into the website to try and change it and was sent a quotation for an additional R1789. It was approximately 12 hours after booking. I was moving the ticket from July to October and so figured my new ticket should be cheaper? I had paid over R12 000 from Dar es Salam to Cape Town which is excessive. I phoned travelstart and the agent was very unhelpful and I said to her that she may as well cancel my ticket and I would buy a new one. A flight is normally 6 to 7k rands. They offered me about R900 (nine hundred) back on my R12 855 that I paid. I then tried to change my flight again as it was the only option I had left. They then wanted to charge me R10 789 to change my flight. My total cost would be over 22k for a 7k ticket. I phoned again and Srikant was very helpful and managed to reduce it to R1779. I still ended up paying more than 14k for a 7k ticket but they had me by the ... Their business ethics are disgraceful to say the least. I would far prefer to book with an airline directly. I have never really found airlines to be unreasonable when you make a simple error. On another occasion they took all the additional costs on a ticket although I had unticked the options. I submitted a query on their very unhelpful query page and guess what..... No answer at all. Completely ignored. Scale of 1 to 10? I would not be able to score them. Negatives would have to be allowed for.