Very bad service by Voyager

On the 30th of March I made a online booking and paid online, received my proof of payment from the SAA Website and a email confirming my booking. I had to use my Voyager Miles or they will expire on the 1st of April.<br> <br> SAA never notified me that the payment for only taxes didn't go through.<br> <br> Every time I phone regarding my booking they hang up on me. Now they went cancelled my booking and I have lost my miles. When I went online to pay SAA their website didn't allow me. Got an error incorrect currency.<br> <br> I wanted to redo the payment so many times.<br> <br> I don't know what to do anymore?