Spar waterloo horrible service

Hi. Firstly waterloo spar staff is not friendly at all well I had made peace with that, but today was just the worst guys where do you take these people from. they know nothing about customer services my gosh its scary. Nelly Ndlovo was my cashier today so I was caring cash and it happened that I exceeded the limit I then told her to remove an item with an attitude she said this thing you telling me to remove is only 8 rand and you over with 20 rands, I mean thats where customer service enters suggest that no remove this and this then you will be fine I didn't want her to sympathize with me no but she just had to be rude, okay fine I tell her to remove a few items then we payed when we were about to leave I ask my friend for a slip becuase I don't understand why I exceeded only to find out that missy has double charged me on an item, we quickly went back to her she then blames the till she's like this till with an attitude again no apology no nothing. Im sorry but you should consider hiring people who know about customer services, us being at the shop doesn't me we know nothing I am also working with people and I get ****ted on but I stay friendly because I know i would be told customer is always right . So for me to get a horrible services when I am a customer annoys me.