Flight price changes

I booked on line at 10pm on Thursday and paid by card only to find out in morning payment had not gone through because of limit. Tried to pay only to be advised price had increased by R2070. Phoned a very helpful consultant (Emanuel)and he resent invoice which I duly paid in full. This afternoon I received another mail stating that the price had changed once again and that if I did not pay an additional R500 by 1 pm my ticket would be canceled and I should send my bank details and they would refund me. No where was there an option to pay. As I got to my mail after hours I sent emergency email and Shereen phoned me and was fantastic She helped me pay the R500 ( which I stilll feel ****** about) and I’m happy to say I have mailed e-tickets. Thank you Shereen. Not a pleasant experience fir a first time travelstart user