Returning incorrect bought good

Against my better judgement I bought a flash drive at Incredible Connection in The Glen in Johannesburg during December. Unfortunately it was incorrect and when I got home to East London I went to change but in my travels I had kept the wrong slip. The manager was really polite but he was quite adamant that without a slip he could do nothing.<br> I do not understand this I did not want my money back and surely with a barcode it proves I that it was bought at Incredible Connection. The bar code was explained to me like I was an idiot though by the manager.<br> I have had a similar experience at Woolworths and I was given a Woolworths voucher as I did not have a slip.<br> In all the time that Incredible Connection has been especially in East London I have never experienced good customer service.