It's not my job!

I recently purchased a YOCO card machine from Incredible Connection Bethlehem. I was looking for a specific function so the guy that sold it to me said if it doesn't do what I need it to do; I can bring it back for a refund. The machine did not have the function that I need so today I returned it. I was told by a lady, Jamina that the machine needs to be de-registered and if she does it then I must give her R100 because it is not her job! You know...sometimes it's not what you say but how you say it. To de-register the machine is literally a click on the app which I did in front of her and I asked is that it - is that what you want R100 for and she said yes. I find this unacceptable - when people simply say because it's not my job...they shouldn't be there in the first place. I was really upset about this - if it is a requirement from Incredible Connection then it should at least be explained better.