inefficient dreadful service

Daughter wanted a Volpes voucher for her birthday; I went to Volpes Ferndale on Republic, 27 Jan told them what I wanted and after a few minutes they told me the computer was down. I went to another shop came back 20 minutes later. yay, computer working. Asked for a R1500 voucher; cashier goes to the back to fetch cards. Credit card used to pay, card voucher won't link to amount; 3 or 4 tries. cashier goes to back. incredibly hot in shop. Cashier comes back. Tries another card then another. 30 mins gone. OK refund money please, too hot, out of time. cashier disappears to back AGAIN; comes back, gets me to complete form for EFT; messes on computer, takes cr card machine, payment declined..For A REFUND?? Tries again. Disappears to back. Again. Tries to link voucher again. Fail. Tries refund a few more times. I asked for the manager "in a meeting'. Tells me EFT refund will take 3 or 4 days. No voucher and R1500 out of pocket. Volpes: Train your staff, upgrade your comp system, have your credit card m/c upgraded and GIVE ME MY MONEY BACK!!!!