Line help not very knowledgeable on activations

Some people who are supposed to help you when you phone 082135 doesn't know their jobs. All our contracts are on my husband's name and when necessary I can buy data for his number through the vodacom app using my airtime (obviously there is a limit attached) He also has another number with a little bit of monthly airtime which we don't really use, so we want to use that number's airtime to buy data for his number and not waste or lose the airtime. So at first Thembi activated it for us but after numerous restarts on that number, it was still not working. So my husband phoned them again and spoke to Sfiso. He at first said he will have a look and when we told him we can use the one number on the SAME contract he was away looking for something??? for a long time, then he told my husband the main contract holder must do the activation, then my husband said but he IS the main contract holder and that I am busy on Hellopeter. then suddenly he said that there can't be more than one number activated, but funny, my daughter could do it at the same time as I could do it and ALL the numbers are on my husband's name, which to my maths is then 2 which is more than 1???. So either they don;t really know how to do it or Vodacom app is useless