Cashier says you must give email to checkout

On March 18 at 9:52AM I was checking out with Thuliswa (THZWA) at your Cavendish location in Claremont when something very odd happened. When it came time for the receipt, Thuliswa very quickly chose a bunch of options for me on the screen before I could react and demanded that I enter my email. I could see on the screen below that there was an option to print the receipt so I asked for a printed receipt. Thuliswa told me this was impossible and that they had no printers and that the only option was the email the receipt. I verified with her 3 times that she was saying that it was impossible to print and that I must email. As I kept refusing to provide my email she grew more hostile. As the situation was escalating, I moved her hand and checked the box to print the receipt and pressed OK. A receipt immediately printed below the counter and Thuliswa gave it to me and tried to act like nothing was wrong. I asked her why she **** to my face repeatedly and she laughed and pretended like she did nothing wrong. This was wildly inappropriate and made me uncomfortable as a customer. I hope these instructions to lie to the customer did not come from management