Service delivery

I bought an uncapped from webafrica and I was told my service will activate by itself within 48 hours today is the 3rd day already and it still not working my sister bought the same package from telkom and it was delivered her services are already working why did I have to pay for something that will just frustrate me while I need to use it this is really bad how can they sell something if they cannot deliver in time I contacted them several times already still nothing is happening