On the 16 January I purchased some items from the store at Nicolway and I checked my slip when I got home and realised that I was charged double for 1 item I bought

On the 16 January I purchased some items from the store at Nicolway and I checked my slip when I got home and realised that I was charged double for 1 item I bought. I called the store on the 17 Jan and spoke to Nombulelo, she took my number and said the manager will contact me to assist, no call received. I sent an email and attached my slip, then I received a response that instructed me to go back to store to get my refund. Firstly, the mistake was done by the store and not myself, I have to use my petrol and time to go an resolve a matter I did not create. I was further informed that they do not make electronic refunds, the only way to get my refund is to go to the store. I was inconvenienced, now I'm the one who has to make efforts to get refunded, while the store don't take accountability or efforts to meet me half way. Very disappointed.