Shocking terrible service from a senior

We bought 2 Russell Hobbs irons on the 9/02/2015, after few months it stopped working, we were told to keep the original package together with the stamped booklet from the shop, we decided to make copies as we know the originals fades after a month or two, we then today 3/05/2015 took back the irons for replacement, we gave her both irons,booklets as well as the 2 copied slips, the lady refused to assist us requested original slip we asked if she couldn't take the copies and go and verify from their system the codes on the slip she still insisted she can't help,we requested she dials in head office number as she kept saying the shop can't assist she also refused advised us to buy own airtime and to look for the number ourselves on the Shoprite plastic we heard, we felt this didn't make sense we read the return policy terms and conditions inside the shop and lo and behold it said its either the shop slip or the item has to be in the original package including the stamped booklet for the replacement we showed her this but she clearly didn't understand English as she still denied, we were only assisted after we called head office, very *********** senior staff clearly needs training