Double billed

Yesterday in the afternoon around 15h53,I went there to buy weekly groceries, I was assisted by Londiwe Scelimpilo Sithole as my cashier... And later on my call was answered by a woman whom we got cut while I have explained my situation and she never called back, in part of my groceries there were 2 packets of veggies fresh ones 1. Was Veg Potjie 1kg priced at R54. 99 and 2. Roast veg mix 800g priced at R49. 99, after the cashier scanned everything and packaged them she took out the pack of roast veg mix and scanned again, so I asked didn't you scan it the 1st time and she said yes, Olryt I left it at that and exited the store, but when I got home unpacking my mini grocery and comparing it to my slip I noticed the discrepancy I was billed twice for roast mixed veggies and got only 1pack...so when I called the store after explaining my case the line got cut I thought she was going to call me back and nothing happened... So it's sad but I need my money back nor my 2nd roast veggies mix... But it is petrol to go up and down from Tembisa to Norkerm... Checkers please assist me my numbers are *** or ***