Rude Teller

After pointing out that most of the items we had chosen was not given to us at the discount it was supposed to have been given to us at the teller reluctantly cancelled that transaction and started the transaction again. I repeatedly told him that it was still scanning incorrectly as we had the same problem at the Jet store earlier that day but this issue was rectified by the supervisor at Jet without any hassle. By his 3rd attempt(which was still incorrect) he told my sister and I that prices go up and down all the time and that's just how it is. He insisted on having the original receipt and told me that I did not need it because I could not exchange the sale things anyway. When I told him I needed it,as it IS the customer copy he pulled it out my hand, while the other tellers around told him to stop that as I am the customer. When I told him to make a copy of the receipt he threw the receipt at me and said YOU go to the cellphone counter and make the copy. He repeatedly said \and you people wonder why"and laughed cynically. What did he even mean by that? """