Why are they called assistants when they can't assist?

I actually wish I could give it zero starts... It has been a long time since I experience such incompetency - especially the staff at the Tygervalley store. And then the consultant who I spoke to on the Customer Care Line told me I need to carry the costs for the shop assistant's incompetency.

All I wanted was to have my data contract cancelled and converted to a Cell C prepaid sim in order for me to by one of those Giga prepaid packages. (Because that is what my financial position and needs are right now.) I went to shop for assistance a month ago to do the paperwork, yet on the 1st on this month I received a SMS to say that new data was loaded as per my contract. So due to Cell C shop assistant incompetency data was loaded to my phone - which I hear is now my mistake that it have been used (smartphones use background data if there is data loaded, no data loaded, no background usage - apparently this is too difficult for your employees to understand) .

Now, to have my contract cancelled immediately - because it was never processed/sent through (or whatever) by the shop assistant and because I can't have another full debit order going off my account - I need to pay for whatever data that was used. While I never asked for that data, I actually requested for it to NOT be loaded. I suffered costs and expenses because Cell C does not listen or care about their clients requests, needs or abilities.