You can give deezer a try just get any vodacom number and you get the first month free. Nice to test it out. If you want to keep it they will charge you R60 to your airtime. So if you can get airtime for cheap this might be a better way to pay for deezer sub and it is prepaid if you use it on a prepaid sim.
I like music streaming services a lot. Simfy is nice it has charts and nice selections. Their pc software is not bad. Their radio function is HORRIBLE.
Deezer got decent selection of music. Horrible software but the browser version makes up for it but not ideal. Okayish radio.
Rdio has THE best genre based radio option.
Ideal situation would be if I can have simfy with rdio's radio then it would be the best streaming solution there is.
All and all I think SA got a great selection of streaming services available actually and all of the top class. Deezer,Simfy and Rdio are the main ones and they are good.