Data and customer line problems

I tried logging my problem with Vodacom directly but unfortunately their help line 135 (they did not pick and after a minute they end the call) nor are any of their customer care email adresses working on their website. My problem was data related. 1) They did not let me know that my data was finished, 2) when trying to purchase data they want you to use the app, for which can't use because you don't have data. 3) when going into the app, the cheaper data option of 1GB for R99 advertised was not available.