Over charged for non-originals items.

I have just came back from pep cell at protea glen mall to buy a Samsung A05s phone, i was told it only come with a cable, but the cable is not branded Samsung, it's a no name cable, i was told i can buy the adaptor from them and a screen protector, i was charged R100 for the adaptor and 70 for the screen protector, but both the adaptor and screen protector are not reflecting on my slip. the money they charged me is only reflecting as if it's a cash back of a R170. i want the store to take back their adaptor and screen protector because it looks like they sold to me cheap staff at higher prices, hence there is not even a description of these items on the slip. what a shame of a store this is. they are over charging people for **** items, I would have bought from the streets only if i knew that Pep cell does this to customers, I thought i was buying quality.