Cell C only accepts cash????

I wanted to purchase a prepaid Samsung Galaxy A20 and 200 gigs of data at Cell C Galleria Amanzimtoti. Cherissa Naidoo informed me that they had no stock of the A20 as well as the tempered glass and back cover. They were expecting the A20 to arrive at 12pm and she would phone me once the item had arrived. I bought the data for R1 999.00 and she asked me if I had cash when I wanted to pay with my Debit card. I told her I do not carry cash with me, so she reluctantly swiped the Debit card and told me that when I came to buy the Galaxy A20 I must bring cash in the amount of R3 500.00 as they only accepted cash. I told her that was unacceptable as I was not prepared to carry that amount of cash with me. I cannot believe that a big Company like Cell C only accepts cash. I am still waiting for her call to let me know if the A20 had arrived in stoc**** Needless to say I went to Vodacom and purchased the Galaxy A20 there and paid with my Debit Card.