Booking No confirmation message was sent to my phone before deducting funds from account

I have used Travelstart to book many of my flights in the past and never encountered this problem. I recently booked flights from CPT to JHB for 3 travelers. When booking on the site you select your flight and press next. It then takes you to a page where you must put your card details in, as well as all passenger details and at the bottom gives you an option to continue. When I pressed the continue button the website just deducted the funds from my account without any warning and said my flights are confirmed. They did not send an sms to my cellphone for me to confirm that I was happy to go ahead with the payment. I was also not given the chance to even check that I was happy with my flights before the payment went through. Due to this by the time I found out that my booking was wrong, it was too late, I had to pay an extra R4477.50 over and above the original R3078. This was only after I had to speak to a manager about the ticket booking who then took off their administration for flight changes otherwise I would have paid around R5500 extra. This was the best they could do for me. I feel that the travel start needs to fix their payment system to avoid these future problems from happening to someone else. This also happened with my newly booked Emirates flight to London thankfully that booking was correct. I am extremely unhappy about this an will not use travel start again. Please feel free to contact me on *** or *** about this review.