Unannounced Gate change causing rebooking

On the 23rd of March 2016 I had a flight scheduled for 1715 from Johannesburg to Cape Town <br> <br> Boarding time was 1715 <br> <br> I was at boarding gate E5 as per my ticket instructions at 1648 <br> <br> There was no one at the gate and the other two gates were busy by the time I got help from anyone it was 1705<br> <br> I was then sent back to the counter where the luggage is checked in<br> <br> I was told there was a gate change I heard no announcement and what's the point of taking my cellphone number when an airline cannot convey information such as this via bulk sms? Is it that difficult? <br> <br> I was then told that I must pay a re booking fee <br> The \re booking fee\" was the price of another flight the next morning at 910am <br> <br> I top it all off the flight was marked online for 2575 booking it at the khulula counter costed me 150 extra cos of some online fee <br> <br> I lost the money from the previous flight and I had to book a new flight over 12 hours later at a fee more than what was advertised <br> <br> I have missed morning meetings and appointments <br> I am only using this disastrous airline one last time due to the urgency of my needed return I would not have minded paying a rebooking fee. "